Date:2019-08-05
The hardware industry in Dongguan is relatively developed and has gathered many manufacturers producing shielding covers. However, there are also many manufacturers who often have a high scrap rate when producing shielding covers, which may compress profits or result in losses if orders cannot be completed. So solve itshield canThe problem of high scrap rate is quite important. We need to first understand which step caused the problem, and then prescribe the right medicine. Below, let me analyze it
1、 The quality of raw materials is not up to standard.
Raw materials are the first guarantee for producing qualified stamped parts. If the hardness and surface of the raw materials do not meet the quality requirements, the corresponding scrap rate of stamped parts will definitely be too high. Especially for shielding covers with relatively large deformation, if the raw materials are not qualified, cracking, damage and other phenomena may occur. So, when purchasing raw materials, one must not be tempted by cheap prices, and must find trustworthy and legitimate material suppliers.
2、 The installation of stamping molds is not qualified.
The installation of stamping molds does not comply with regulations, resulting in poor fit between the upper and lower molds during stamping processing, leading to a high scrap rate. Stamping molds are fundamental for processing shield stamping parts, and installation is crucial while ensuring that the molds are problem free. Don't think that installing stamping molds is easy, even small errors can lead to the production of stamped parts as scrap. When installing stamping molds, the concentricity, clearance, flatness, and other factors of the upper and lower molds play a crucial role.
3、 The die is worn.
During long-term use, the wear and tear of stamping molds or loose parts can also lead to product scrap. There are many stamping factories that do not perform daily inspection and maintenance on the molds after they are installed for production. They only remove the molds and simply grind the cutting edges when the burrs are relatively large. Little do they know that the wear of molds is not only the wear of the cutting edge, but also the wear of some mold accessories with use. After these accessories wear out, it will affect the accuracy of the entire mold.
4、 The worker's operation is not standardized.
The worker did not follow the installation manual when operating the punch press, or made errors in feeding.
5、 The positioning device is inaccurate.
During the feeding process, inaccurate positioning of the mold can cause problems in the coordination of each process and also lead to the production of waste products.
That's allReasons for the high scrap rate of shielding covers: http://www.bosiwj.com/in-10.html
The knowledge and solutions required for each type of shielding cover are different, so the specific reasons need to be analyzed. If the scrap rate of the shielding cover produced is too high, we can start with these reasons first, hoping to help you




