304 316 stainless steel perforated pipe for exhaust system should pay attention to control the quality of raw materials, ensure the accuracy and uniformity of temperature control of the furnace, and optimize the inspection process and equipment during production, which can improve the quality of products. The following is the specific operation:
1. Control the quality of raw materials: how to control the quality of the raw materials used are mainly continuous casting round tube billets, rolling (forging) round steel, and ensuring the quality of the billet is the first pass for the quality of 304 316 stainless steel perforated pipe for exhaust system. , mainly including steelmaking level, pouring and cooling process, and forming quality. The first is to improve the level of steelmaking, reduce harmful elements and gases (nitrogen, hydrogen and oxygen), and improve the uniformity and purity of components.
2. To ensure the accuracy and uniformity of the temperature control of the hot furnace: How to control the quality of the hot furnace used in the manufacture include billet heating furnace and 304 316 stainless steel perforated pipe for exhaust system heat treatment furnace. The accuracy and uniformity of temperature control are two important indicators for judging the quality of heating equipment, and are an important guarantee for the heating process. Therefore, manufacturers should strictly implement the regulations on the service life and calibration cycle of thermocouples, as well as furnace temperature uniformity detection.
3. Optimizing the inspection process and equipment: How to control the quality of the intermediate products in the process of pipe making is the key to controlling the quality of the finished pipe, especially the quality of the inner wall surface, we must pay attention to the source. First of all, it is necessary to establish reasonable and effective inspection and processing procedures to ensure that existing problems can be found and the problems found can be effectively dealt with.