Sand casting production technology

Abstract

The invention discloses a sand casting production technology. The sand casting production technology comprises the following specific steps: raw material inspection, core making, shaping, mold matching, melting and pouring, in-mold cooling, shake-out, heat treatment, cleaning and polishing, casting examination, machining, deburring, rough cleaning, pressure testing, final inspection, final cleaning and putting in storage. With adoption of the technology, multiple inspection procedures such as raw material inspection, mold matching, casting examination, pressure testing and final inspection areperformed respectively, so that manufacturing precision and quality can be monitored in the whole production process of castings, and production of defective products is prevented; meanwhile, the mold is manufactured through front procedures of core making and shaping, so that the mold is produced specially for batch products, and production efficiency of a production line is increased greatly.

Description

technical field [0001] The invention relates to a casting process, in particular to a sand casting production process. Background technique [0002] The existing sand casting process has the following problems: [0003] 1. The existing sand casting process generally uses molds for smelting production directly. The melting point of molds that can be directly smelted and produced needs to be very high, and it is difficult to achieve a certain hardness or achieve a dissimilated shape with ordinary sand; [0004] 2. The existing sand casting process generally does not carry out item inspection in the production plant, and because the sand casting process is long, if a process problem is found at the end, it needs to be tested step by step in reverse, which greatly reduces the production efficiency; [0005] 3. The setting of the riser in the existing sand casting process is not completed in step 1), and then another process needs to be added to open the riser specially, which r...

AI Technical Summary

Problems solved by technology

[0003] 1. The existing sand casting process generally uses molds for smelting production directly. The melting point of molds that can be directly smelted and produced needs to be very high, and it is difficult to achieve a certain hardness or achieve a dissimilar shape with ordinary sand;

[0004] 2. The existing sand casting process generally does not carry out item testing in the production plant, and because the sand casting process is long, if a process problem is found at the end, it needs to be tested step by step in reverse, which greatly reduces the production efficiency;

[0005] 3. The setting of the riser in the existing sand casting process is not completed in step 1), and an additional process is required to open the riser after that, which reduces the production efficiency of the product

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