Forming die is reinforceed to little alloy surfaces coating of many units

The utility model discloses a forming die is reinforceed to little alloy surfaces coating of many units, the utility model discloses a choose for use at present in usefulness, the internal thread shaping spinning ring of bearing steel processing, utilize the little alloy surfaces coating technology of many units, make shaping spinning ring working face formation one deck or multilayer superhard, high abrasion, the intensive coating of hanging down coefficient of friction, the superficial hardness is brought up to originally more than 4 times, increase the hardness and abrasion resistance of spinning ring working face, reduce the friction of shaping spinning in-process and steel ball, the service life of the spinning ring is prolonged, the size that reduces product (internal thread copper pipe) is undulant, promote internal thread copper pipe surface quality, thereby obtain customer performance better, it is curved the customer to reduce substantially the product, expands, expands scrapping in the use.