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Shanghai Yeying Metal Products Co.,LTD founded in 2014, is located in yexie town, songjiang district, Shanghai, covers an area of 1100 square meters.It is a new technology of professional company, is specialized in metal surface nitriding technology services company. It has unmatched in metal nitride advanced technical advantage, in solving the nitride on the difficult problems of accumulated rich experience. Often the brittleness problem exists in ion nitriding and uneven nitride, the company in the brittleness problem and uneven nitride has a special technology. The company's technology in auto mould, plastic mold, aluminum alloy die-casting die has been widely used, etc. In cold die and extrusion die, such as different material has a good application. Over the years, we use the new nitriding method, has been to the automobile, shipbuilding, textile machinery, petrochemical machinery, precision instruments, the gear, the drive shaft, worm gear and worm, machine tool spindle, extrusion press pole, sleeve, CAM, corrugated roller, screw, crankshaft, valve and precision mould, synchronous ring reducer, hydraulic cylinder, guide plate, wire tube of many fields, such as a wide range of technology to promote cooperation.

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We do a lot of work on the application In auto mould. The common method to mold reinforcement is flame hardening, coating and electroplating, these methods are often easy to flake or has pollution to the environment, the result is bad, but the company of ion nitriding can ideal can solve the problem of the service life of mould.
   Ion nitriding is to die after cleaning decontamination in ion nitriding furnace, mold connect the cathode, anode furnace wall connection, the furnace into a vacuum, after reaching a certain vacuum degree into a certain amount of ammonia, go up in the mold and the furnace wall of indirect direct current, make the mould surface produces glow discharge, make the mould heated to 500 degrees to 600 degrees, by controlling the related parameters make the mould surface nitriding layer. In deformation under the condition of moulds, significantly improve mould wear resistance and corrosion resistance, greatly improve the surface hardness and strength. Ion nitriding surface phase structure of the compound layer can be adjusted flexibly to meet the needs of different working condition of mould, this is an important characteristic of ion nitriding technology. Ion nitriding in the mold deformation under the condition of make mould surface hardness increased from HV300 to HV500 HV1000, its abrasion resistance increased significantly, the friction coefficient decreased significantly, die mold stained with wear smaller to reduce abrasion. With chrome plated 2 to 5 times higher than life, stamping parts of the surface quality improved obviously, reduce the waste. Because of the small friction coefficient, reduce oil consumption and reduce the cost.
   Now auto mould materials mostly USES the gray cast iron, nodular cast iron and alloy cast iron, alloy cast iron due to the added alloying elements, higher hardness, wear resistance higher hardness, better quality. Mould should be pretreated before nitriding, generally to quenching tempering to deal with the stress, then nitriding processing, such a nitride effect is good. Nitriding depth most 0.1-0.3 mm is better. The company ion nitriding equipment effective diameter of 2.8 meters, 1.5 meters high, the largest bearing 20 tons. The company has a strong team of experts can help you to solve problems of die life.
 
The company main customer at present:
Shanghai general motors co., LTD. (yantai branch);
Chery automobile mould co., LTD;
Jiangling motors co., LTD;
Shanghai macro holy mould co., LTD;
Zhejiang LeRen mould co., LTD etc.
We expected to develop customers in major cities of Shanghai, yantai, nanchang, wuhu, nanjing and other first-tier and second-tier cities.