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Coated sand for centrifugal casting high strength roll

Author:Jiangyin roll machinery co. LTD Publications: 13/03/2018 Click:
In order to ensure that the rollers have excellent centrifugal joint surfaces, the produced rollers have centrifugal bimetallic composite rollers with high strength, high wear resistance, high hardness and high quality. The coating technology developed and adopted by our company has the following advantages:

(1) With suitable physical strength performance, it can be made into high-strength shell core coated sand, medium-strength hot core box coated sand, and low-strength non-ferrous alloy coated sand.

(2) The fluidity is good, the profile (core) produced is clear, the organization is dense, and it can manufacture complex sand cores, such as cylinder head and cylinder water jacket core.

(3) The surface quality of the sand core is good. With less or no coating, you can get a better casting surface quality. The surface roughness can reach Ra = 6.3 ~ 12.5μm, and the dimensional accuracy can reach CT7 ~ CT9.

(4) The disintegration is good, and the castings are easy to clean.

(5) The sand core has strong moisture absorption resistance and long storage time, which is beneficial to storage, transportation and use.

(6) The coated sand is costly and consumes a lot of energy. It will produce an irritating odor during the molding, core making and pouring processes. It may cause agglomeration during long-term storage in high-temperature and high-humidity seasons.

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