The quality inspection of die forgings includes appearance quality inspection and internal quality inspection, including numerous inspection items respectively. The first is the chemical composition inspection, usually based on the smelting before the furnace sampling analysis as. Especially for important or suspect die forgings, some chips can be cut from the forgings and chemical composition can be tested by chemical analysis or spectral analysis. Secondly, the size and shape of die forgings are checked. Visual inspection is a more common method to observe the surface of forgings with the naked eye whether there are folding, cracks, bruises, scars, surface burns and other defects. And the surface of die forgings hidden deep defects, often after heat treatment and cleaning for observation. And its dimension measurement inspection includes length, width and height dimensions; Parallelism and perpendicularity of the plane; The curvature of the axis; Ellipticity of inner and outer circles; Radius of fillet; The concentricity; The included Angle and the misshift, etc. When the die forgings are required to carry out the precise size inspection, in addition to the marking inspection and the special sample can be used, the inspection instrument controlled and analyzed by the computer can be used, or the optical comparator, optical projector can be used for the relevant size inspection, to ensure the accuracy of the inspection results. Surface flaw detection is also a part of the quality inspection of die forgings. The surface quality of membrane acid and base is determined by magnetic particle test and fluorescence test. In addition, there are ultrasonic inspection, low tissue inspection, microscopic inspection, residual stress inspection and so on, each link can not be ignored.
Henan Shuangzhi Machinery Equipment Co., Ltd. is a professional forging processing and production of forgings. Products can be produced according to the drawing, chemical composition, free forging, die forging, rough machining, heat treatment, finishing integration. Long-term cooperation with petroleum, chemical, mining, and other enterprises. Supporting the production of sprocket, gear, gear ring, ring, cylinder, shaft, cylinder, block, module, support seat, flange and other forging products. If you need custom forgings, you are welcome to contact us in time.
All material ultrasonically tested to gb/t6402-1991(astm-a388). Fumigated pallets or wooden case.
Our Forging shop is specializes in professional die forging & free forging products .We have the capacity to produce 4,000 tons of forgings every year. The main products cover engineering, machinery, petroleum machinery, shipping machinery, hydraulic pressure machinery and other industries. We can provide various of carbon steel, alloy steel, stainless steel, special steel of open die forging, and all kinds of rough forging blank ring. The gears, bearings, rings, covers, box sets, blind hole box body and other products. We have passed ISO9001-2000 QUALITY SYSTEM Certification. Our forging parts can be divided in two sides. One is free forging. The other one is die forging. Our free forgings are as follows: 1, forging main shaft and flange for wind turbine 2, forging shaft, forging ring and forging tube sheet for power generation(steam turbine, gas compressor) 3, forging flange, forging tube sheet and forging pipe for petrochemical equipment(pressure vessel) 4, forging shaft, forging connecting rod and forging crankshaft for shipbuilding 5, forging gear, and forging gear shaft for gear reducer, speed variator, gear box 6, forging shaft, crankshaft and roller for heavy machinery(such as metallurgical and mine equipment, machine tool and textile machinery and so on) 7, forging parts for valve and gear pump 8, forging parts for bearring Our die forgings are as follows: 1, forging parts for engineering machinery 2, forging parts for automobile and truck 3, forging parts for railway machinery 4, forging parts for textile machinery 5, forging parts for agricultural machinery 6, forging parts for ship container 7, forging parts for fuel pump Steel frame or wooden box.
Hydraulic close die forging hammer is a new energy saving and environmental protection forging hammer. It can save more than 90% energy comparing with the steam forging hammer and the forging hammer with compressor. Also, hydraulic close die forging hammer can improve the working condition. The advantage, structure and design feature of hydraulic close die forging hammer as follows: 1. Energy conservation and environmental protection. 2.The operation is convenience, lowering and the act is agility 3.System work safety, it has safety locking motion 4.Special structure is more fair and more safety. Our company is the only professional manufacturer of hydraulic die forging hammer in china, we have a history of more than 50 years in producing hydraulic close die forging hammer and other forging press equipment. We are an iso9001:2000 certification company.
Casting Pump Parts Sand Casting Aluminum Valve Body Our custom casting services include die casting, gravity die casting (permanent mold), investment casting (lost wax), and sand casting. With more than 20 years of industry experience, you can depend on our casting product manufacturing capabilities to meet the needs of the automotive, mechanical, electrical, kitchenware, industrial, appliance and aerospace industries, worldwide. We are committed to pursuing the latest industry technologies and resources to meet your custom casting needs.
Casting Pump Parts Sand Casting Aluminum Valve Body Our custom casting services include die casting, gravity die casting (permanent mold), investment casting (lost wax), and sand casting. With more than 20 years of industry experience, you can depend on our casting product manufacturing capabilities to meet the needs of the automotive, mechanical, electrical, kitchenware, industrial, appliance and aerospace industries, worldwide. We are committed to pursuing the latest industry technologies and resources to meet your custom casting needs.
Forging Steel Products Unidus forging factory has a complete production equipment and technology, a production capacity of 30,000 ton per year. Main products are petroleum machinery I IV type pressure vessel forging pieces for chemical industrypower stationshippingaviationnuclear power and all kinds of engineering machinery forgings. The shape of the products are: rotor shaftproducing all kinds of forging according to the standard of home and abroad, such as flangewellhead equipment and valves which are used in oil production equipment tube forging. A broad range of forging materials GB standard carbon steelalloy steelheat resistance stainless steel and the ultra-low carbon stainless steel and so on. We also produced a batch of forging pieces according to the United States and the European standard material forgings. Has a mature production of A105 A266 A350 4130 4140 4340 F5 F11 F22 F51 F53 F91 F92 F304 L F316 L F321 L and other forgings according to the standard of ASME, ASTM. Mature Europe standard products are mainly: S235 S355 16Mo3 C422 and other carbon steel alloy steel, stainless steel forgings according to the standard of EN10025 EN10083 EN10084 EN10250 EN10283 EN10088 EN10095 and so on. With a significant feature of strong focus on researching to peer, in heat treatment section the company equip with micro-furnace, carry out experiment to new products and new materials then study its heat treatment process. At the same time, we cooperate with iron smelting company to study the Physical and Mechanical Properties of steel, reasonable mix of components. Especially for duplex stainless steel, super austenitic stainless steel, control and reasonable mix of components is very important, and it is crucial to structure control and mechanical properties. After a long-term exploration research, in the field of nuclear power and aviation, there are special requirements for those special material, we have a lot of valuable experience in the process of forging and heat treatment. In the forging process, after many years of trial practice, the company has formed a complete set of technical process from the raw materials, heating, forging to heat treatment. Especially the high-temperature alloy steel forging, our forging parts NiCr20TiAl, the content of Ni up to 65%, and its forging is very difficult. Now, the high-temperature alloy product forged by us has successfully taken place of imported products.
Supplier: Forgings
