Uneven Density Between Top and Bottom of the Product

The density at the bottom of thick-walled castings is higher than at the top. Density differences are evident between different parts of the product, affecting the overall performance consistency of the product.

(1) Process factors: fillers or solid components settle under gravity, this factor affects the product's '2079851475616104453 and final quality. (2) In terms of process time: the curing speed is too slow, giving the filler enough time to stratify, improper time control causes the reaction or cooling process to fail to meet process requirements, affecting the final performance of the product. (3) In terms of the process: uneven pressure transmission or insufficient holding pressure causes differences in densification in various parts. (4) In terms of materials: filler settling or component segregation causes local density anomalies. (5) In terms of operation: uneven feeding or improper filling sequence.

(1) Formula optimization: add anti-settling agents or thixotropic agents to improve the anti-settling property of the liquid, determine the optimal addition amount through small-batch tests and verify its impact on the comprehensive performance of the product. (2) Formula adjustment: appropriately speed up the curing speed to reduce settling time, adjust gradually and verify the effect, ensuring that other performance indicators of the product are not affected. (3) Material selection: use a mold system with a stirring function., establish material selection evaluation standards and determine the optimal plan through comparative tests. (4) Preventive measures: establish a raw material batch inspection system, regularly sample product density and mechanical properties, and establish quality trend analysis.

The essence of uneven density is inconsistent distribution or densification of the material during the '2079851475616104453, and the feeding method and pressure transmission need to be optimized.