In the pump station for the centrifugal pump light-load start, and usually require to close the outlet valve of the pump, and then start the pump unit, when the speed up to rated speed, and then gradually open the outlet valve; in order to prevent the media in the system back in must also be installed in the pump outlet check valve; due to ordinary Swing

The instantaneous shut down of the check valve often produce water hammer accident, endanger the water pump system and therefore I have set the effective water hammer eliminator.
More frequent use of the (gate) electric butterfly valve supporting micro-resistance slow closing check valve to achieve the above purpose, but in the field use the electric butterfly (gate) valve is normally closed lax, the motor burned out and the gear reducer transmission damage, such as failure: micro-resistance slow closing check valve to adapt to the narrow range, can not adapt to traffic

Large changes in pressure, and adjust the needle valve easily blocked, resulting in the failure of the damper can not move, affecting the normal safe water supply.
A multifunctional pump control valve Profile
Multifunctional pump control valve is a new type of hydraulic control valves, a valve can replace electric butterfly (gate) valve, check valve and water hammer eliminator three devices. It can automatically open the pump when the slow opening, quick closing and slow closing when the pump stops, without any electrical control and other power and manpower, but also do not need oil pressure mounted

Settings.pipe fitting suppliers
The main advantage of the multifunctional pump control valve:
(1) without operator control. Before and after the valve when the pump start and stop the water pressure as power control, automatic open and close with the opening and closing of the pump function.
(2) valve opening and closing movement process can effectively prevent water hammer pressure wave increased accident. According to field investigation and measurement, Water hammer pressure peak were less than 1.3 times the working pressure.
(3) No on-site commissioning, a wide range of applicable conditions.
(4) basic no maintenance. As a valve replacement valve, maintenance and repair workload greatly reduced.
(5) loss of resistance. Streamlined wide body design, the resistance loss of more than 50% lower than similar foreign products, such as the DN200 economic velocity of v = 2m / s conditions, multifunctional pump control valve loss for 0.7m, while the similar foreign products is 1.5m.
Second, the multifunctional pump control valve structure and working principle
2.1 Structure
Multifunctional pump control valve structure see Figure 1 from the main valve and exterior accessories. The main valve including a valve body, valve plate, the slow closing valve plate, stem, seat and diaphragm controller (including the valve cover, the diaphragm seat, diaphragm, diaphragm plate): exterior accessories control valves, filters emptying valve, micro-return

Valve. Micro check valve is specially designed accessories to set up a limited flow hole in its non-return direction. The installation in the form see Figure 2.
2.2 works
Pump starts, the pressure of the valve outlet side panel in the main valve, the valve in the closed position, while the upper chamber of the diaphragm controller connected to the pressure of the water, the inferior vena low pressure connected with the valve inlet side.
After the start of the pump, the valve inlet pressure is gradually increased, the pressure of the water slowly through the valve inlet side of the connection tube into the cavity under the diaphragm controller, the main valve plate slowly open, the opening speed can be adjusted by controlling the valve.
Pump shutdown, the valve inlet pressure is reduced, when close to zero flow, the main valve plate quickly shut down under its own gravity. Reduce the inlet pressure due to valve and valve outlet pressure water tube into the cavity on the diaphragm controller, by connecting the inferior vena water pressure back to the valve through the valve inlet side of the connection pipe

Gate import side, the slow closing valve plate slowly closed, slow off time can be adjusted by controlling the valve. The speed of the main valve plate closed gentle closed the slow closing of the valve plate to meet the two-stage closure rule can effectively eliminate water hammer.
Third, several technical problemsstainless steel pipe fittings
3.1 connecting pipe parts design
The role of micro-check valve is to ensure that the valve open time is greater than the motor start-up time, so that the motor light-load start; avoid Kai pump caused by water hammer due to open the valve speed too fast. Valve open time by the control valve according to site conditions the pressure setting.
Control valve to adjust the rate of water flow out of the upper and lower chamber of the diaphragm controller to adjust the slow closing time; overhaul diaphragm controller is turned off; can manually operate the valve to open and close the valve in the pump during normal operation.
The filter is to ensure the cleanliness of the water in the upper and lower chamber of the diaphragm controller. Valve in an open process flow back and forth out of itself by a backwash of the role it can also be used for medium conditions of the poor.
3.2 of the valve to eliminate water hammer characteristics
We can see from the principle of a destructive water hammer, reducing water hammer boost two factors: (1) had just been cut off before the water velocity v as small as possible (close to zero), close the main valve plate; (2 ) duration t is the water hammer u = 2L / α (alpha – Pressure wave velocity, m / s, the closed valve; L – length of the tube, m)

5-10 times the actual water hammer pressure h limit in the safe range, thus the elimination of destructive water hammer damage.
Multifunctional pump control Fazhu valve plate opening degree is the size determined by the impact of stainless steel pipe fittings in the water main valve plate to open the flow rate is high: the flow rate decreases when the valve plate opening degree is small: at a flow rate close to zero the main valve plate closed. The whole process consistent with the speed closure principle to eliminate water hammer, thus eliminating

Water hammer effect is very good.
Multifunctional pump control valve slow closing valve plate off, the pressure difference which will be realized only after the closure of the main valve plate, slow closing valve plate in order to close, it is not possible to ease the closure and formation in the upper and lower chamber of the diaphragm controller quick closing of the synchronization phenomenon.stainless steel tee
3.3 valve resistance characteristics
In order to reduce the flow resistance, the design reduces the weight of the main valve plate, a sleek and spacious body design. Unauthorized stations detected by the Hunan Provincial Hydraulic Machinery Quality Supervision, of DN200 multifunctional pump control valve resistance coefficient of about 3.8, with the specifications of stainless steel pipe fittings, swing check valve resistance coefficient

Of 5.5.
3.4 diaphragm design
The quality of the diaphragm directly affect valve performance and service life of critical components, a variety of screening, the choice of a chloroprene rubber as raw material, intermediate nylon fiber mesh to strengthen; authorized by the Hunan Provincial Rubber Quality Supervision Testing Station, fatigue bending 650 000 rupture, can be used for more than 10 years.
3.5 maintenance
No other external hydraulic or electric components, basically no maintenance, and wide-type valve cover, the internal valve can be completely removed, and easy maintenance.
IV., Examplesstainless steel reduce
Ankang railway waterworks conditions: lift 80m; height difference of 68.4m; flow 850 / h; outlet caliber DN400; tube length is 6km. Use
JD745X – 10 DN400 multifunctional pump control valve, according to field test, the slow closing time for the 30s, stop the pump peak pressure of 0.95MPa (the original configuration
Electric butterfly valves and micro-Slow Close the butterfly valve, stop the pump peak pressure of 1.2 ~ 1.4MPa). Stopping the pump pumps the maximum reverse speed 600r/min, with the original
The same configuration.
By theoretical calculations, multifunctional pump control valve to stop the pump pressure peak 0.98MPa ordinary check valve to stop the pump pressure peak 1.88MPa. Will be more
Function of the pump control valve, micro-Slow Close butterfly and check valves are three settings are causing the pump stops water hammer results list as follows:
Boundary conditions of the water hammer multifunctional pump control valve electric butterfly valve + electric butterfly valve of the ordinary check valve + micro-resistance butterfly valve
Hmax / Ho 1.225 1.5 2.4
βmax / βo 0.4 0.4
Boundary conditions of Table 13 valve water hammer
Hmanx-stop pump pressure peak Ho-normal working pressure βmax-stop pump unit maximum reversal speed βo-rated speed (1450r/min)
It can be seen from the table, multifunctional pump control valve for the elimination of the Water hammer effect in full compliance with design specifications of the pumping station and pump operating procedures; multifunctional pump control valve can achieve Kai pump slow to open to eliminate the open water hammer pump.
IV Conclusion
Prove after field use, multifunctional pump control valve can effectively eliminate damaging water hammer, a notable feature in improving the water supply system security and reliability, and ease of commissioning and installation, easy operation and management, low maintenance, consistent with 2000 cities water supply industry, technological advances in the development plan
Water supply equipment, automation, mechanization and modernization requirements, the new pumping station replacement valve products.

A trap of the sparse amount of water:
The choice of trap must be multiplied by the selection of equipment per hour of steam consumption rate 2-3 times for maximum condensation of water to choose a displacement of the trap. In order to ensure the trap in the car as soon as possible to discharge the condensate, the rapid increase in the temperature of the heating equipment. Trap emission energy is not enough, will cause

Condensate can not be discharged, reducing the thermal efficiency of heating equipment. (When steam heating equipment is beginning to send the steam, the device is cold, full of air, you need to trap the air rapidly excreted row of a large number of low-temperature condensate, the device gradually heat up, and equipment in normal working condition.pipe fitting suppliers

For driving a lot of air and cold condensate, a lower inlet pressure, the trap overload operation, the trap requirements than the displacement of the normal working hours, so to select the trap by choice of magnification 2-3 times. )
Trap of working pressure:
The selection of traps, can not choose to nominal pressure trap, because the nominal pressure can only trap body shell to withstand the pressure level, the trap, nominal pressure and the pressure difference. Therefore, according to the working pressure to choose a displacement of the trap. Working pressure before trap

Pressure minus the difference between the trap outlet back pressure. Trap back pressure calculation is: (When the condensate after the trap into the atmosphere, trap back pressure is zero. If the traps discharge condensate to focus on recycling, this time, the back pressure of the trap is the resistance back to the mains return pipe upliftstainless steel tee

Height, the pressure within the second evaporator (back to the tank) three and )
(3) mechanical type traps seat number:
Mechanical type traps according to different working pressure segment is divided into a variety of specifications seat aperture "seat number", the displacement of each segment of the working pressure and seat number to form a coordinate curve, different seat number "sparse amount of water can vary considerably. Mechanical type traps should be based on the process conditions the most

High operating pressure and maximum displacement of the two corresponds to the coordinates of the curve to select a suitable seat number. " Nominal pressure to the seat number, if you chose the wrong seat number there may be a trap does not work or equipment storage in, affecting the normal operation of equipment.stainless steel reduce
(4) trap temperature:
Selection of the trap, according to the highest temperature of the stainless steel pipe fittings, steam traps meet the requirements of process conditions. Stainless steel pipe steam the highest temperature of more than nominal pressure saturated steam temperature corresponding to the known as superheated steam, superheated steam stainless steel pipe fittings choose traps should be used in high temperature and high pressure superheated steam professionals

With traps.
Traps connection size:
Trap of process conditions determine the working pressure before and after the trap, the sparse water and seat number, the technical parameters of the trap manufacturer to select the trap size specifications. (Not random matching of the device is connected size the same size of the trap, the trap connection caliberstainless steel pipe fittings

Not representative of the sparse amount of water the size of the same caliber of the trap, the hydrophobic capacity may be very different; selected trap must be based on the process conditions, with reference to the parameters of the trap manufacturer to matching trap is the correct choice. )

The new structure of the electricity / gas valve positioner air consumption, if the locator gas consumption to determine the air consumption of the entire control valve, it should be today s new structure locator meter gas can be as low as one of the original estimates / 2 can.
Keywords: electricity / gas valve locator; steady-state air consumption; dynamic air consumption; meter gas supply capacity
A model of electric / pneumatic valve positioner air consumption
Pneumatic diaphragm control valve, cylinder valve, currently the world s main executive body, if it is adjustable locator needs to be equipped with air consumption of energy-saving electric / gas valve positioner should be noted that a design problem, because different gas consumption estimates the capacity of the device instrument air compressor to determine

Significant differences between samples from a variety of locator unit is not the same, the state is not very different from the surface of a difference of eight times, 100 valves, gas volume will vary widely (see Table 1 ).
Table 1 at home and abroad single acting electric / gas valve locator air consumption (standard conditions)
Production plant
Modelstainless steel pipe fittings
Gas pressure / kPa
Gas consumption in the sample / (m3 / h)
Air consumption when the output 50% / (m3 / h)
Fisher
DVC-5000
140
0.3
300stainless steel tee
DVC-6000
140
0.4
400
Neles
ND-800
400
0.3
300
ND-9000
400
0.4
400
Yamatake
AVP-302
140stainless steel reduce
0.24
240
Samson
3780
140 to 600
0.09
90
Siemens
PS2
140 to 700
3.6 * 10-2pipe fitting suppliers
Koso
The EP-800
140
0.3
300
Bellofram
YT-1000
140
0.18
400
Shanghai Great Wall
CCCX-4000
140
0.3
300
Anshan instrument
700

At present, the butterfly valve as a kind used to achieve piping system off and flow control components, has to be very widely used in petroleum, chemical, metallurgy, water, electricity and many other fields. Butterfly valve technology has been known in its sealed form of the use of the seal structure and sealing materials for the rubber, PTFE

Ene. Due to the limitations of structural features, not suited to high temperature, high pressure and corrosion resistance, abrasion resistance, and other industries.
A more advanced existing butterfly valve is a triple eccentric metal hard seal butterfly valve and valve seat the Siamese components, the seat sealing surface layer welding temperature, corrosion resistant alloy material. Multi-layer soft stacked seals in the valve plate, this butterfly with the traditional butterfly valve compared with the high temperature, easy operation, opening and closingstainless steel pipe fittings

Without friction, is turned off with the transmission of the torque increases to compensate for seal butterfly valve sealing performance and durability advantages. However, this butterfly still exists in the course of the following question:
, Due to the soft and hard stacked ring fixed in the valve plate when the valve plate is normally open state media sealing surface to form a positive erosion subject to erosion, soft seal with the sheet metal sandwich, direct impact on seal performance.
Second, the structural conditions limit the structure do not meet the following diameter DN200 valve, because the overall structure of the valve plate is too thick, the flow resistance.
Third, due to the principle of eccentric structure, the sealing surface of the valve plate and valve seat seal on the transmission of torque to the valve plate pressure to the valve seat. Positive flow state, the higher the pressure medium sealed tight squeeze. Positive pressure when countercurrent flow medium with the media pressure between the valve plate and seat unitstainless steel reduce

Less than medium pressure seal started to leak.
High-performance three-eccentric hard sealing butterfly valve, characterized in that: said valve seat ring by the soft T-shaped sealing ring on both sides of multi-layer stainless steel sheet. Valve plate and valve seat sealing surface of the oblique cone structure of the welding temperature of the surface of the valve plate oblique cone, corrosion resistant alloy material; fixed in the adjustment of the ring platestainless steel tee

Spring adjustment screw assembly in the platen structure. This structure effectively compensate for the elastic deformation of the sleeve and the valve between the tolerance zone and the stem in the media pressure to solve the sealing problem of the valves in the two-way transmission medium of exchange process.
T-soft on both sides of multi-layer stainless steel sheet to form a ring, has the dual advantages of a metal seal and soft seal with zero leakage sealing performance, both in the case of low and high temperature. Test proved positive Chi flow state (medium flow direction and the rotation of the disc in the same direction), the sealing surface

The pressure of the torque transmission device and media pressure on the role of the valve plate. Positive media pressure increases when the valve plate oblique cone surface with the valve seat sealing surface tight squeeze, sealing the better. When the counter-current state, the seal between the valve plate and valve seat by the drive torque to the valve plate to the seat. Withpipe fitting suppliers

Reverse media pressure increases, the valve plate and seat unit is pressure less than medium pressure spring adjustment ring under load, the deformation energy stored in compensation valve plate and valve seat sealing surface of the tight pressure play a role of automatic compensation. This utility model, unlike existing technologies as on-board safety valve

Replace the hardware multi ring, but is installed directly on the body, additional adjustment ring is the ideal way hard sealing plate and the middle seat. It can replace the valve, globe valve and ball valve.

In urban and rural construction, according to incomplete statistics, annually produce 200 million tons of construction waste removal of old buildings, the annual volume of construction waste has accounted for up to 40% of the total municipal solid waste, construction waste disposal has been urgent. Urban construction garbage disposal in order to better service, the Luoyang Kai Hing Mining Machinery Co., Ltd. in the broken sand production line equipment developed on the basis of, the introduction of integration of integrated units – mobile construction waste crushing station, convenient construction waste crushing. Sorting of construction waste containing iron material removed after a specific device in addition to iron, rough broken, broken, and even crushing equipment, crushing of renewable Aggregates processed into a certain size, and finally applied to the roadbed stone, unburned brick, cement admixtures, and many other aspects.

On this issue in the resolution of construction waste, mining machinery and leading enterprises, Luoyang Kai Hing Mining Machinery Co., Ltd., through research and practice, the introduction of mobile construction waste crushing station. Kai Hing Mining Machinery Co., Ltd. launched the mobile construction waste crushing station is a new rock crushing equipment, mobile crushing and screening equipment, including primary crushing station and secondary crushing and screening station, belt conveyor, etc., at all levels broken stations is an independent unit of work can be their own to complete their commitment to duty and the belt conveyer is responsible for material transmitting and piling up between each crushing station; mobile crushing plant crushing equipment at all levels is a reasonable match, the entire line of flow discharge smooth, reliable operation, easy to operate, energy efficient features, especially mobility, extension, together with the raw materials or construction site can be a variety of combinations, to meet different material needs; mobile crushing plant for limited space, transportation inconvenient ore crushing of construction waste. Look from the customer situation, the mobile crushing plant more in line with the wishes of our customers, Luoyang Kai Hing Mining Machinery Co., Ltd. R & D of mobile construction waste crushing station can best meet the needs of different clients.

Kai Hing Mining Machinery Co., Ltd., mobile construction waste crushing station is widely used in the reconstruction, concrete crushing work; deal with processing based on the aggregate production process of concrete construction waste, waste bricks, stones, etc., in order to achieve the resource re-use. Kai Hing Mining Machinery Co., Ltd. for many years to develop aggregate production line equipment, quality assurance, in accordance with the actual situation of the customer to provide the optimal design.

A. Laser cutting of metallic materials

Although almost all metallic materials at room temperature infrared wave energy has a high reflectivity, but the emission in the far-infrared band 1.064um beam of the lamp-pumped ND: of YAG laser and laser 10.6μmCO2 is successfully applied to many metal laser cutting practice

2 laser cutting of non-metallic materials 10.6μm wavelength CO2 laser beam is easy to be non-metallic material absorption, thermal conductivity and low evaporation temperature and the absorption of the beam inside the material of almost the entire input and instantaneous vaporization at the spot irradiation the formation of the initial holes, into a virtuous cycle of the cutting process.

The accuracy of laser cutting

The accuracy of laser cutting by many factors:

A laser beam through the focused spot size

Aggregation of the laser beam spot is smaller, the higher the precision of cutting, especially kerf smaller, the smallest spot size up to 0.01mm.

The workbench walk accuracy cut Repeatability

Workbench higher precision, higher cutting accuracy.

 3, the greater the thickness of the workpiece, the lower the accuracy, kerf the greater.

Due to the laser beam is a cone, cut the seam is also tapered, seam thickness 0.3MM stainless steel than 2MM cut small.

1.Please adopt to match hang of and the pattern of it, tool weight.At this time, the capacity of the spring coil crane isn\\ t the weight that only uses a tool essence, and also adds total weight after calculating by the weight of accessories to make selection.①The weight 3 kgs of the weight 14 kg accessories of tool essence=total weight 17 kgs.So should choose vtr-22.(15-22 kgs)②Be lain to of two kinds of patterns of catalogue, please adopt to have great capacity of the pattern.(The life span of the spring coil is long)1.Equilibrium machine essence with don\\ t bump into the situation of constructing thing etc. bottom, establish a height bad come to install.2.Please equip to lend support to a steel wire and increase a safety.Making to take the bait can return a ground of adjustment is loose tightly.3.The weight and use purpose of machine or tool that the match hangs to mourn regulates spring coil strength in the capacity.Regulate is is rightwards square the Gua pole, the capacity increases, the capacity reduces while turning left.1, the distinct spring coil EK-0 of the type EK-00 spring coil equilibrium machine and spring coil EK-0 equilibrium machine equilibrium machine and spring coil EK-00 equilibrium machines all that day originally ENDO far rattan spring coil the equilibrium machine lightly carry 1 kind in the series, the amount of loading of the twos is all 0.5 kgs kgs-1.5ses, and inside of is all nylon cordage, but two of the route of travel still has the diameter of cordage and oneself of the weight is different, the route of travels EK-0s are 1.0 ms but route of travels EK-00s to 0.5 ms;The diameter of nylon EK-0 cordage is 3.0 mms but nylon EK-00 cordage diameter to 2.0 mms;Spring coil EK-0 the equilibrium machine hold with dignity for 0.5 kgs, EK-00 self-respect only is 0.2 kgs.
pneumatic conveying

The clean raw material emphasizes to want a function to the potato\\ s processing, therefore handle a stage in the preparing of raw material in addition to stone and clean unit is the most important.This unit is to want to remove the foreign bodies, such as freestone and mud…etc. in the potato thoroughly, will pure the potato cleaning deposit a potato to temporary save to anticipate Dou in.
The potato is transported into a negative spiral type by water current in addition to the stone machine carries on cleaning in addition to stone.In addition to the stone machine turns the drum to is divided into to line up sand drum and Shai tube two parts;Its Shai tube the wall up press the craft to request to open Shai bore.In addition to the stone machine works the diameter is smaller than the sand grain of Shai bore, will leak outside in the Shai tube from the Shai bore, outside the Shai tube wall negative push the function that the helix takes under, make headway to the negative square of water current, fall into the stone gathers inside the sand slot before the machine, besides which, from row sand drum through unload sand plank and line up a miscellaneous of stone and anticipate.The diameter a little bit big piece of stones, brick anticipates a heavy miscellaneous articles or objects of etc. because of don\\ t float to float, get into a Shai tube the future reunion stick under the push that the Shai wall inside the tube, takes in the Shai negative helix inside the tube, against the current flow a square to make headway and fall into to line up inside the sand drum, collect with the diameter smaller sand grain together expel.
In addition to the potato after the stone with the water current has been flowed to send slot and dehydration space grid to send into a roller cleaning machine to carry on cleaning to the potato behind.The roller cleaning machine works under the low liquid and is to the potato carry on thoroughly cleaning.Through turn the revolving of drum to make mutual of potato tuber powerfully friction collision with attain rinse effect, cleanly clean at the same time water is from the cleaning machine of anticipate to feed, the water current contrary washes away dirt raw material to combine from the cleaning machine into anticipate a people to eject dirty water and Shu skin etc..Cleaning water can transport to°from the circulating pump to flow to send slot as blunt send water, attain circulation use.
The potato of washing clearly falls to a set to take to spray to sprinkle spirally to transport machine since the roller cleaning machine came out.Transport noodles on board in the helix even distribute several rows to spray a mouth, fresh water sprays on the potato through a certain pressure and takes dirty water of the potato surface further.Cleaning water can bring the Li to belt conveyer through a net under of collections slot inside, and transport to°from the circulating pump a cleaning machine to anticipate, attain to circulate an use.The finally clean potato has been sprayed to sprinkle spirally to transport machine to send into a potato and temporary saved Cang in.The capacity of potato Cang generally design for can save a to arrive quantity for two hour.Specialized design of spiral transport function to enough promise that the raw material can well fill up potato Cang.
pneumatic conveying

The mainstream of the global mining machinery manufacturers have entered the Chinese market, or joint venture or sole proprietorship. And a considerable number of multinational companies has been the Asia-Pacific is still to the global center of gravity shifted to the Chinese market, the market is extremely competitive, from this perspective, living in the mining machinery market in China has been internationalized. The crusher is a growing market. According to statistics, in recent years, sales of new aircraft has more than 150,000 units the year more than 160,000 units have no suspense. Cone crusher machine, the manufacturer\\ s team is growing. The so-called all-round, on the one hand, almost all international cone crusher brands enter the Chinese market, the brand is very full. Even parts suppliers, including the engine, hydraulic parts and axle boxes and so on in a bigger market share. Original scraper mechanical-based industry, manufacturers are almost involved in the field of the cone crusher, mostly cone crusher as a development strategy for the core product. From the cone crusher products, product line more and more full.
Vico Heavy Industry Machinery Co., Ltd. for many years dedicated to science and technology R & D and manufacturing of mining machinery, over the years by virtue of their quality service and good product quality to win the trust of customers, Vico Heavy R & D and production WKS Symons cone crusher The PY series Cone Crusher to improve, optimize, and update the alternative products. Above the crushing medium hardness ores and rocks. Compared to PY series spring cone crusher: reliable structure, high efficiency, easy adjustment, the use of economic The spring system is the overload protection device to enable the metallic foreign body through the crushing chamber without damage to the machine, dry oil seal in the form of powder and lubricants isolation to ensure reliable operation. Cone crusher machine production technologies the Vico Heavy Machinery Co., Ltd. is a leading domestic level. The cone crusher of this series, the equipment failure rate is very low, the operating rate of more than 85 percent, significantly reduces the overall cost of the crusher.
With the development of society, science and technology innovation, to the cone crusher machine technology has reached the international level, Vico Heavy steadily in recent years to improve and supplement the advantages of professional applications laboratory and scientific and technological personnel, the product manufacturing process and process process technology research and innovation. Recent years, hydraulic cone crusher, high crushing frequency and efficiency of the crushing chamber shaped the perfect combination of production and high yield more than other models in the crusher, which greatly improved laminated crushing effect between the particles of the material, broken products for homogeneous cuboidal. Hydraulic insurance, hydraulic adjustment, hydraulic chamber clear of the use, operation more convenient and easy to automate, easier maintenance. Crushing machinery manufacturers Vico Heavy Industries with a high-tech enterprises and high energy R & D team, and constantly independent research and development for domestic users with the most forefront of the times of broken machinery, and is committed to giving the user the highest quality products.

 With the development of technology and human productivity improvement, the gift of the traditional manual process of cutting and machining production has increasingly not been welcomed. Subject to the constraints of the equipment and technology, low production accuracy of the workpiece to a certain extent affect the people of perfect aesthetic, At the same time, also affect the price of the gift, indirectly, the economic interests of the manufacturers greatly damaged.

      In order to better meet the buyers to buy more high-quality technology, science and technology researchers have invented the laser technology gifts gifts, in order to greatly improve the economic interests of the manufacturers. The gift of laser technology is about to laser cutting applications in all walks of life a variety of materials process raw materials to produce more accurate, faster, cutting edge smooth burr-free gifts. This laser technology gift is a manifestation of the laser art, laser art such subjective performance for a variety of materials, including acrylic, wood products, bamboo products, resins and other non-metallic materials.

       Laser gifts of considerable not only reflects the free polishing, cutting quality, and high precision cutting, less waste, cutting manufacturers, high efficiency, at the same time to create more high-quality laser technology gifts. The symbolic significance of the gifts of the laser process is very strong. More customers favor craft gift made with a laser.