The surface coating of the electric ball valve is classified according to the implementation method, which is to form a surface layer composed of specified non blank materials on the blank; The surface coating includes painting, anodic treatment, oxidation treatment, metal spraying, etc. Each part of the electric ball valve product processing process can be further classified according to its implementation method. Cutting can be divided into the following categories: cutting and truncation of blanks, processing with general equipment, processing with automatic machine tools and semi-automatic machine tools, processing with program-controlled machine tools, and automatic line processing. Formulating process is one of the most important functions of production process preparation. According to the unified process document system, the process process composed of process route cards and process cards not only includes the provisions for the executor of manufacturing this or that kind of parts, but also solves the basic problems of production preparation (for example, developing technical quotas, selecting process equipment systems, calculating resource requirements, etc.), implements operation control on the production of electric ball valve products Organize the technical supply of materials, carry out technical and economic plans and other aspects as the original standard documents. In single piece production, the automation of process design of electric ball valve products is the most urgent problem. The quality standard for the acceptance of electric ball valve products: it is the supplementary technical data for the complete assembly drawing and part working drawing of electric ball valve products, and is the decision-making basis for process technology, process means, process methods, procedures, control and assembly. The production program of electric ball valve products and the production program of production type products are the production volume including spare parts (spare parts) and waste products, which is usually calculated according to the following formula: different production programs lead to different production scales.
The production management department divides it into three types according to the batch of production or the continuity of production:
(1) Single piece production; Individual production of products with different structures and sizes is rarely repeated. For example, heavy machinery manufacturing, special equipment, special tooling manufacturing and prototype trial production of new electric ball valves.
(2) Batch production The same electric ball valve products are manufactured in batches throughout the year. The manufacturing process has certain repeatability. For example, machine tool manufacturing is a typical batch production. The number of electric ball valves manufactured in each batch is called batch. According to the size of batch, batch production can be divided into small batch production, medium batch production and mass production. The characteristics of small batch production process are similar to that of single piece production; The characteristics of medium batch production process are between single piece small batch production and mass production.
(3) Mass production - The number of electric ball valve products is very large, and most workplaces often repeatedly process a certain part.