，具有较强的设计、开发和制造能力。 Yuyao Double Friday Gold Machinery Factory is a professional manufacturer integrating development, research and production , and has strong design, development and manufacturing capabilities. Over the years, it has been adhering to the business philosophy of "people-oriented, aiming at first-class" to provide domestic and foreign customers with a series of products with advanced technology, stable quality and reliable performance. Cutting tool, textile machinery, petroleum geological drilling, construction and other high-tech and traditional industries. The factory has advanced and flexible management mechanism, strong development and design team, sophisticated technology and equipment, rich manufacturing experience, strict quality assurance system and complete testing methods, and always adhere to the "quality first, reputation first, service "The first" management policy, marketing network throughout the country.
Our factory mainly produces continuous drive friction welding machine series: friction welding machines of various specifications and models from 0.5 ton to 50 tons and non-standard products with special specifications and models. We have successfully welded various tool blanks, copper-aluminum transition joints, bimetal bearings, valves, ball joint pins, universal ball cages, steering rods, axle shafts, shock absorbers, turbocharger turbine shafts, S Products such as camshafts, socket wrenches, construction rebars, drill rods, sucker rods, motor shafts, etc.
Yuyao City Double Friday Machinery Co., Ltd. takes the revitalization of national industry as its mission and devotes itself to the development and research of high-tech products. It will continue to develop and promote the friction welding machine market with first-class quality, first-class service, and most competitive prices. To meet the needs of domestic and foreign customers.
Advantages of friction welding:
The welding quality is good and stable. The scrap rate of friction welding of boiler coils and automobile exhaust valves has been reduced from 10% and 1.4% of the original flash welding to 0.01%, respectively. Weldment dimensional accuracy is high. The maximum error of the total length of the welded diesel pre-combustion chamber is 0.1% mm. 2) High welding productivity. The engine exhaust valve double-headed automatic friction welder can reach a productivity of 800 to 1200 pieces / h. 3) Low production cost. As the welding machine has low power and short welding time, it can save electricity. Compared with flash welding, friction welding can save about 80-90% of electrical energy. In addition, the welding allowance of the workpiece is small; the workpiece does not need special processing and cleaning before welding; sometimes the welding flash does not need to be removed; no filler material and protective gas are needed. Therefore, compared with arc welding, processing costs can be reduced by about 30%. 4) Can weld dissimilar steel and dissimilar metals. 5) Friction welding machine is easy to realize mechanization and automation. Simple operation, easy to master and maintain. Work place is hygienic, free from sparks and harmful gases
Friction welding is a pressure welding method that uses the heat generated by the friction between the contact end faces of the workpiece in the relative rotational movement to bring the ends into a thermoplastic state, and then quickly upsets them to complete the welding. The most common friction welding method. When welding two circular cross-section workpieces, first one of the workpieces is rotated at a high speed about the center line as an axis, and then the other workpiece is applied with axial pressure to the rotating workpiece to begin friction heating. When the given friction welding time or the prescribed friction deformation is reached, that is, when the joint is heated to the welding temperature, the rotation of the workpiece is immediately stopped, and at the same time, a greater axial pressure is applied to perform upset welding. Usually, the entire welding process takes only a few seconds.
Since 1956, friction welding has developed rapidly at home and abroad. So far, there have been about 5,000 friction welding machines used in production around the world, and about 1 billion products are produced each year.
China is one of the earliest countries in the research and application of friction welding. In industrial sectors such as electric power, electrical transformers, power station boilers, automobile tractors, metal cutting tools, light industrial machinery and petroleum drilling, friction welding has been used to produce various aluminums. Copper transition joints, copper-stainless steel hydroelectric joints, boiler serpentine pipes and valves, internal combustion engine exhaust valves and bushes, round shank cutters, textile machine bobbins and petroleum drill rods.