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What inspections are needed for shaped parts
2016-11-25 Source: Author: Anonymous
In order to make the shaped parts have good performance,Shenzhen Shaped parts factory Will detect some special shaped pieces
1.Hardness and strength are very important for shaped parts, and diet such as hardenability should also be considered.Because it cannot be ruled out that there will be parts with low hardness and low strength in the center of the part. Generally, the hardenability of the material is good, and the hardness of the bolt cross section can be evenly distributed.As long as the hardness is qualified, the strength and guaranteed stress can also meet the requirements. However, due to the poor hardenability, the hardness is acceptable, and the strength sometimes fails to meet the requirements.
2.In the case of decarburization and carburization of the furnace, in order to judge the carbon control of the furnace in time, spark inspection and Rockwell hardness can be used for inspection.Spark inspection is to judge the hardened parts by grinding the sparks lightly on the grinder. The Rockwell hardness inspection is carried out on one side.
The sensitivity of hydrogen embrittlement will change to increase the strength of the shaped parts. The hydrogen removal treatment is generally in an oven or a furnace. At high temperatures, hydrogen diffusion can be used. Use the tightening method to screw the screw to a considerable tension on the special fixture, and the threaded fastener will not break after loosening.
1.Hardness and strength are very important for shaped parts, and diet such as hardenability should also be considered.Because it cannot be ruled out that there will be parts with low hardness and low strength in the center of the part. Generally, the hardenability of the material is good, and the hardness of the bolt cross section can be evenly distributed.As long as the hardness is qualified, the strength and guaranteed stress can also meet the requirements. However, due to the poor hardenability, the hardness is acceptable, and the strength sometimes fails to meet the requirements.
2.In the case of decarburization and carburization of the furnace, in order to judge the carbon control of the furnace in time, spark inspection and Rockwell hardness can be used for inspection.Spark inspection is to judge the hardened parts by grinding the sparks lightly on the grinder. The Rockwell hardness inspection is carried out on one side.
The sensitivity of hydrogen embrittlement will change to increase the strength of the shaped parts. The hydrogen removal treatment is generally in an oven or a furnace. At high temperatures, hydrogen diffusion can be used. Use the tightening method to screw the screw to a considerable tension on the special fixture, and the threaded fastener will not break after loosening.
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