Stainless steel non-standard parts are made of stainless steel. The process characteristic of the production operation under room temperature conditions. The coating is not electro-deposition. It is caused by the rotation of the plating cylinder of the assembly parts. The stainless steel non-standard parts make the bolts or nuts in the cylinder and the medium collide with each other. Transfer of mechanical energy to form a coating. The coating structure is that the fine-grained spherical zinc powder is deformed by mechanical force transmission and collision, and becomes a layered superposition of flat, dish-shaped zinc particles to condense into a coating. This structure coating has the basic physical characteristics of stainless steel, and the function of the coating is iron-based Fasteners provide the anodic protective coating required for corrosion protection.

Whether the stainless steel non-standard parts meet the key elements of the use requirements. The problem of connection, tightening and sealing has always been a basic problem for mechanical basic parts. To improve the manufacturing precision of stainless steel non-standard parts and ensure the effect of fastening two or more parts or components, effective improvement measures can be carried out through theoretical research and production practice. Stainless steel non-standard parts are the most critical mechanical parts in mechanical production. Due to structural requirements, non-standard parts are specially customized fasteners based on the size and other requirements provided by users. Therefore, in the production process, it is necessary to strictly ensure that the center height of the machine tool coincides with the height of the bending tooling center. The error is not allowed to be 0.01mm. In addition, non-standard parts need to consider the accuracy and reliability of one-time compression and positioning during processing.

The use of solid phase transformation to quench the outer surface of non-standard parts by rapid heating is called surface heat treatment, commonly known as surface quenching. Including flame heating quenching, high frequency induction heating quenching, medium frequency induction heating quenching, laser heating or electron beam heating quenching, etc. The characteristics of surface quenching of stainless steel non-standard parts are partial heating and quenching of the surface, small deformation of the workpiece; fast heating speed, high production efficiency; short heating time, and slight surface oxidation and decarburization. It has a significant effect on improving the wear resistance and fatigue strength of non-standard parts, special-shaped parts, and standard parts that receive a certain impact load. The appearance enhancement methods developed in modern times such as laser, electron beam, ion beam not only applied some high-tech to the appearance enhancement of materials, but also went beyond the conservative heat treatment category in process and formed a new technical field.

The size of the machining allowance has a significant impact on the processing quality and production efficiency. The machining allowance is too large, which not only increases the amount of processing labor, reduces productivity, increases materials, tools, and energy consumption, and increases processing costs. If the machining allowance is too small, it cannot eliminate all defects and process errors, and clamping cannot compensate for machining errors, resulting in waste. Its selection principle is to be as considerate as possible under the premise of ensuring quality. Generally speaking, more refined and smaller process allowances.　

In order to calculate the qualified parts, the thickness of the metal layer must be cut off with the blank, which is called the machining allowance. Machining allowance and allowance can be divided into process and total allowance. The process of removing the thickness of the metal layer is called the process of machining allowance. From the blank to the finished product, it will be completely removed, called the total surplus, which is equal to each process of the corresponding surface.　　 not only increases the amount of processing labor, the size of the machining allowance has a significant impact on the processing quality and production efficiency. The machining allowance is too large. Reduced productivity, increased information, tools and energy consumption, and improved processing. If the machining allowance is too small, it cannot eliminate all defects and process errors, and clamping cannot compensate for machining errors, resulting in waste. Its selection principle is to be as considerate as possible under the premise of ensuring quality. Generally speaking, more refined and smaller process allowances.