To stretch the tendon, for example, it will occupy in stamping has a very important position. In the stretch-forming process, the product needs to have a certain size formed, and pull the covers plastic mold suitably distributed along a fixed perimeter, which pull force from the stamping device, the deformation resistance of the edge portions of the material, and the surface of the blank holder The flow resistance. The flow resistance of produce, if only rely on the pressure side of the force, the friction force between the mold and the material is not enough. ?? To do so, must the blankholder set to produce a greater resistance to stretch tendons, in order to increase the resistance of the feed, so that the material to produce large plastic deformation, in order to meet the plastic deformation and plastic flow of material Claim. At the same time, by changing the resistance of the tensile reinforcement size and distribution, and control the flow of material into the mold speed and feed rate, to achieve distribution of tension and stretch each deformed area of ??the effective regulation of the inner cover of plastic molds, thereby preventing rupture when stretch forming products, wrinkling and deformation quality problems. As seen above, in the development of the stamping process and die design process, we must consider the size of stretch resistance, vary according to BHF arranged tendons stretched and stretched tendons determine the form of the respective deformation area required by the deformation manner and extent of modification is completed forming. Recently, Prime Minister Li Keqiang government work report pointed out that strengthening economic cooperation and Tianjin and the Bohai Sea area. Integration of Beijing, Tianjin and this rose to national strategy. Beijing, Tianjin and Baoding integration as a central location, with extraordinary importance for the share Beijing's heavy pressure, decided to build a state administrative sub-center in Baoding. This self-evident. Will lead Baoding economy will scale new heights, and the plastic mold industry occupies an important part of the surrounding grass brick plastic mold in Baoding economy, we believe the plastic mold industry will keep up the pace of national policies to achieve further growth and rapid transformation. Baoding plastic mold industry has several decades of history, has been the mainstay of the economy of Baoding, in the Taipei District Yan Zhuang Industrial Zone, it lies hundreds of nearly a thousand plastic mold manufacturing enterprises, becoming one of the best plastic mold production base, Baoding Guohui Plastic Products Factory is one of the best, the company has been established, both the production technology is mature, sophisticated production equipment or are among the best in the industry, the company's products sold throughout the country, praised by customers. In Beijing, Tianjin and integration policy environment, Baoding Guohui plastic products factory will go further, fly higher. Cover the plastic mold, mold Guohui (online consultation), plastic mold die by Baoding Guohui Machinery Co. Baoding Guohui Die Machinery Co., Ltd. (www.bdguohui.com) (www.bdguohui.com) Hebei Baoding, plastic building materials leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, the maximum to meet customer needs. Guohui mold in leadership with the staff warmly welcome all inquiries negotiations to create a better future Guohui mold.