Industry News
- The mechanical manufacturing technology of the greenMachinery manufacturing is to provide technology and equipment for various industrial production industry, the development of manufacturing industry to promote the development of industry and promote the construction and development of national economy.Machinery manufacturing is based on the development and utilization of natural resources on a large scale development, the development model greatly damage the ecological environment, influenced the sustainable development of industry, the concept of green manufacturing.The feasibility of a green, mechanical manufacturing process1 high and new technology to provide technical support for the green machinery manufacturingThe advanced mechanical manufacturing molding technology.In the concept of green production, machinery manufacturing technology has a new development, such as precision casting, such as direct deposit and cold extrusion molding technology has been widely used.Precision molding will be the future development direction of maIndustry News August 26, 2016
- Composite hammer forging processComposite hammer is very important in the process of production of one of the production technology of forging process and forging in many casting parts are made in the process, composite hammer head is not exceptional also, after casting this link, the use of the hammer head can significantly improve performance, today we mainly is to investigate the composite hammer forging process on the performance of what is important.From the surface, composite hammer hammer hammer head is divided into two parts and hammer handle end, are to be highlighted, hammer and hammer handle is not the same kind of material that is used by the side of hammer handle because the requirement has strong robust performance, therefore generally choose carbon steel, high chromium cast iron is generally selected hammer side material.Prefabricated hammer and hammer handle, put it in the casting pouring in another kind of liquid metal casting molding.Composite hammer head through forging can eliminate the metal smelIndustry News September 07, 2016
- The relationship between the inverter welding machine and welding processHigh response speed of inverter power supply for welding control technology provides an ideal platform for the power, digital technology in the application of welding power source to further improve the level of the power control technology and operability.Digital control of inverter welding machine will undoubtedly have a strong development, because it greatly simplifies the circuit structure in control, improve the stability of welding machine control system, convenient for application.At present, the domestic digital welding machine with foreign digital welding machine is one of the biggest gap welding performance.Can say, what are the strengths of the digital welding machine is not digital technology itself, but the advanced welding technology.At the same time, also is the biggest advantage of with digital inverter welding machine can seat after the combination of advanced welding technology.The influence of inverter welding machine for welding machine industry is undoubtedly a revIndustry News September 07, 2016
- Three big ball valve connection modeThree big ball valve connection believe there must be a lot of people are not very familiar with, let's together and see it.One, flange connection valvesValve flange connection, the device and remove the contrast all convenient.But than the threaded connection valves heavy, corresponding quotation price is also high.So it is suitable for all kinds of sizes and pressure pipes.But, when the temperature beyond 350 degrees, because the bolts, gasket and flange is lax, also obviously drop bolt load, to force a lot of flange connecting leakage may occur.Two, threaded connection valvesThis cohesion is generally in and out of the end into the valve cone tube or straight thread, can make its cohesion to the taper pipe nipple or road.Because this cohesion may appear larger leakage channel, so it can be used sealants, sealing adhesive tape or filler to block the channel.If the body of the material can be welded, but expansion coefficient difference is very big, maybe the large variations in tempeIndustry News September 07, 2016
- Centrifugal casting rust methodAlong with the development of science and technology, people more and more is also high to the requirement of centrifugal casting, also because the performance of the casting is special, so he was very prone to corrosion, but the handling of the corrosion can be, it is not that simple, commonly used methods are far before we can't meet the requirements of people, so today will come and you say some rust by centrifugal casting method.In fact, there are several ways of centrifugal casting rust, in this simple and everybody said several, we can use the dehydration of anti-rust oil to rust, because this kind of dehydration rust-proof oil his antirust force is very strong, he can direct rust prevention on metal and some mechanical parts.Due to his own advantage so he can be very good for use in some more complex parts, like that of some of the cast aluminum, copper and some metallurgy powder to rust.We can casting for phosphating of centrifugal casting, this way, he is to distinguish, for tIndustry News September 12, 2016
- Welding the weld metal rust treatment and solutionA lot of metal in the process of heat treatment, welding seam will send first very good have rust phenomenon, in order to good to continue treatment process, we need to weld rust for the processing of detail, the standard network according to the understanding for the corresponding processing way, and problem solving methods.Weld metal rust treatment:1, pickling without cracks in acid neutralization or with incomplete, phosphating chemical conversion film is not entirely easy to rust.Spread of the coating for a period of time after rust overflow cracks.2, the acid pickling, strong alkaline degreasing process, residue in the cracks of drug after each other and not washed clean.Cracks after dry place with white products.Coating for a period of time, these white products, with the corrosive medium in the air to produce chemical reaction and overflow cracks.Weld metal rust problem solution:1, the weak alkaline degreasing should be used in degreasing, not contain alkaloid, TAL to control atIndustry News September 12, 2016
- How to improve the level of precision casting technologyCasting industry development in our country is in a difficult period, but in the long run, the development of precision casting industry in China still have some hope, there is plenty of room for improvement.It is understood that although the casting industry development in our country is in a difficult period, but in the long run, the development of precision casting industry in China still have room to improve, the market demand has been slowly began to recover, but also add to the strength of the casting industry development in our country has to believe that the casting industry in China industry is bound to achieve gratifying results.To fundamentally improve the level of casting technology it has to do the following four points:First, the development of simulation technology, improve the accuracy of prediction, to strengthen the process control and improve the yield.At present, the problem of regularity to master also is not very well, thus affecting yield in mass production.SeconIndustry News September 18, 2016
- Steel pressure vessel welding procedure qualification rulesSteel pressure vessel welding procedure qualification rules should a lot of people are not very clear, look at the following.1, the specimen shall be made in stainless steel composite steel (including primary and stratified) preparation.2, the assessment qualified welding process is suitable for the welding (including parent metal and weld metal thickness range, should according to the specimen thickness of cladding and grass-roots are calculated respectively.3, the assessment qualified welding process is suitable for the welding cladding weld metal thickness range of the minimum value, for the specimen after layer thickness of the weld metal.4, tensile and bending test were carried out, the stainless steel composite steel welded joint (including grassroots, transition of weld and stratified) should be tested, impact test inspection only part of the welded joint at the local level.A) tensile samples should include the full thickness of cladding and grass-roots.B) when the transition anIndustry News September 18, 2016
- The classification and characteristics of pneumatic ball valveAbout everyone knows how much the pneumatic ball valve, the following is to introduce the pneumatic ball valve.Pneumatic ball valve and ball valve has a O V type ball valve.O-type ball valve structure of floating type, ball core for precision casting, hard chromium plating processing, appearance with enhanced ptfe seat material, flow crossing the same as the pipe diameter, flow capacity, little flow resistance, closing without leakage, generally do switch valve is used, especially suitable for high viscosity, v-shaped ball valve fixed structure, ball core open v-shaped incision, which can realize shear fiber, granular media.Process equipment under different choice of pneumatic or electric actuators, forming an and electric ball valves, pneumatic ball valve such as pneumatic ball valve must be regulated to achieve proportional valve positioner, such as the electric ball valve to be regulated to achieve proportional election electronic actuators or servo amplifier, etc.From the material,Industry News September 18, 2016
- The classification and characteristics of pneumatic ball valveAbout everyone knows how much the pneumatic ball valve, the following is to introduce the pneumatic ball valve.Pneumatic ball valve and ball valve has a O V type ball valve.O-type ball valve structure of floating type, ball core for precision casting, hard chromium plating processing, appearance with enhanced ptfe seat material, flow crossing the same as the pipe diameter, flow capacity, little flow resistance, closing without leakage, generally do switch valve is used, especially suitable for high viscosity, v-shaped ball valve fixed structure, ball core open v-shaped incision, which can realize shear fiber, granular media.Process equipment under different choice of pneumatic or electric actuators, forming an and electric ball valves, pneumatic ball valve such as pneumatic ball valve must be regulated to achieve proportional valve positioner, such as the electric ball valve to be regulated to achieve proportional election electronic actuators or servo amplifier, etc.From the material,Industry News September 18, 2016