The existence of forging defects will affect the processing quality or processing quality of the subsequent process, and some will seriously affect the performance and use of the forgings, and even greatly reduce the service life of the finished products and endanger the safety. Therefore, in order to ensure or improve the quality of forgings, in addition to strengthening quality control in the process and taking corresponding measures to eliminate the occurrence of forging defects, necessary quality inspections should also be carried out to prevent subsequent processes (such as heat treatment, surface treatment, cold working) And the forgings with defects that have a bad influence on the performance will flow into the follow-up process. After the quality inspection, remedial measures can also be taken for the forgings according to the nature of the defects and the degree of influence on the use, so that they meet the technical standards or the requirements of use.
Therefore, in a sense, the quality inspection of forgings is to check the quality of the forgings on the one hand, and to point out the direction of improvement for the forging process on the other hand, so as to ensure that the quality of the forgings meets the requirements of the technical standards for forgings, and meets the requirements of design, Processing and use requirements.top load water dispenser
Sichuan Hongyi Intelligent Machinery Co., Ltd. stated that the inspection of forging quality includes the inspection of appearance quality and internal quality. The appearance quality inspection mainly refers to the inspection of the geometric size, shape, surface condition and other items of the forging; the internal quality inspection mainly refers to the inspection of the chemical composition, macrostructure, microstructure and mechanical properties of the forging.
Sichuan Hongyi Intelligent Machinery Co., Ltd. stated that after forgings are made into parts, their stress, importance, and working conditions are different during use, and the materials and metallurgical processes used are also different, so different parts are based on the above conditions. According to the requirements of this department, forgings are classified into categories. Different departments and different standards classify forgings differently. But no matter what, the overall quality inspection of forgings is inseparable from two types of inspections, namely the inspection of appearance quality and internal quality, but the types of forgings are different, and the specific inspection items, inspection quantities and inspection requirements are different. . For example, some industrial departments classify structural steel, stainless steel and heat-resistant steel forgings into Class IV for inspection, some departments classify aluminum alloy forgings and die forgings into Class III for inspection according to their usage, and some departments classify aluminum alloy, Copper alloy forgings are divided into Ⅳ categories for inspection.