Hole drawing stretch film

Cause of die loss:

1) The material of the main working parts of the die is improper. Poor material performance, no wear resistance; The die steel is not refined and has a lot of smelting defects; The forging process of punch and die, forging blank is not perfect, and there are hidden dangers of heat treatment.

2) Die structure design problem, the die structure is unreasonable. There is no reinforcement device designed for the slender punch, the discharge port is not smooth and there is stacking, and the discharge force is too high, which makes the punch bear more alternating load.

3) The imperfect die making process is mainly manifested in the poor internal quality of the convex and concave die forging blanks, and the problems in the heat treatment technology and process, which cause the convex and concave dies to be not thoroughly quenched, with soft spots and uneven hardness. Sometimes microcracks, even cracks, grinding and polishing are not in place, and the surface roughness value is too large.

4) No lubrication or lubrication but poor effect.

Jiaxing Chengda Mold Co., Ltd. was invested and established in 2001 for Taiwan Yingda, which has developed in mainland China for 18 years. Taiwan Yingda has been established since 1976, with more than 40 years of experience in total. Strong experience and high quality mold price make customers and peers know and agree with "Chengda Mold"'s adherence to quality.

With the pursuit of technological superiority and the firm centripetal force of the staff, Chengda Mold has become a model of the mold industry. We also sell the main demand markets with high quality, such as automobile fasteners, train high-speed rail fasteners, aviation fasteners, etc.

Because we try our best to meet the needs of our customers, together with our technical production and development capabilities, we have won the support and love of many customers in the industry, and we only remember it.