With the development of the world's casting industry and the improvement of casting technology, customers have higher and higher requirements for casting factories. The consideration of our customers can be understood by us as an experienced casting factory. We are aware that only those who keep improving themselves could survive in the competitive global market. We Besser Casting have always put our customers in the first place as our business philosophy, and strive to meet the needs of our customers. However, many customers who are not very familiar with castings do not understand the appearance defects of the products, and take it for granted that the casting products should be defect-free. In this article, we mainly talk about the appearance quality judgment standard of the casting blank of the silica sol process.
Ningbo Besser Power Technology Co., Ltd. |
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Standard of Casting Appearance Quality |
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Defect |
Level |
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A |
B |
C |
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Cold Barrier |
Not allowed |
Not allowed |
Not allowed |
|
Crack |
Not allowed |
Not allowed |
Not allowed |
|
Holes |
Gas Hole |
Within the range of Φ100mm, one gas hole with Φ0.5mm and the depth within 0.5mm is allowed |
Within the range of Φ50mm, one gas hole with Φ0.5mm and a depth of 0.5mm or less is allowed |
Within the range of Φ50mm, 3 gas holes of Φ0.5mm and the depth within 0.5mm are allowed |
Sand Hole |
Within the range of Φ100mm, one sand hole with Φ0.5mm and a depth of 0.5mm or less is allowed |
Within the range of Φ50mm, one sand hole with Φ0.5mm and a depth of 0.5mm or less is allowed |
Within the range of Φ50mm, 3 sand holes with Φ0.5mm and the depth within 0.5mm are allowed |
|
Shrinkage Hole |
Within the range of Φ100mm, one shrinkage hole with Φ0.5mm and a depth of 0.5mm or less is allowed |
Within the range of Φ50mm, one shrinkage hole with Φ0.5mm and a depth of 0.5mm or less is allowed |
Within the range of Φ50mm, three shrinkage holes with Φ0.5mm and a depth of 0.5mm or less are allowed |
|
Succulents |
Flash |
Not allowed |
Not allowed |
Acceptable without affecting the assembly |
Bulge |
Not allowed |
Not allowed |
Acceptable without affecting the assembly |
|
Iron bean |
Within the range of Φ100mm, 1 iron bean with Φ0.5mm and height within 0.5mm is allowed |
Within the range of Φ50mm, 1 iron bean with Φ0.5mm and height within 0.5mm is allowed |
Within the range of Φ50mm, 3 iron beans with Φ0.5mm and height within 0.5mm are allowed |
|
Bump |
Not allowed |
Within the range of Φ50mm, it is allowed to accept bumps with a length of 1mm, a width of 0.5mm, and a depth of 0.5mm or less |
Acceptable without affecting the assembly |
Our silica sol castings generally adopt B-level standards. During the inspection process, if a defect exceeds the B-level accuracy requirements, we will judge it as unqualified.
Of course, the standard is inflexible. We Besser Casting can also develop multiple and flexible casting solutions that meet customer requirements for customers to choose from according to their different needs.
Casting is complicated. Working in casting industry, we almost spend every day in solving casting quality problems and preventing casting quality problems. Fortunately, we Besser Casting have a professional team dedicated to casting defects, and we strictly follow the standards in the management and control of casting quality problems. We have a dream to grow together with the company, to be fully equipped and supported, to be acknowledged and appreciated by customers.