用不同实验方法研究钾盐熔剂对合金的作用及其机理。该熔剂能在一定条件下析出钾元素,致使合金表面张力降低并有效地防止铅偏析;可减少渣量和合金中的含氢量;还能使合金产生多孔结构,从而提高减摩性能而不降低强度和韧性。实践证明,使用该钾盐不需精炼即可获得优质铸件。 Study on the Effect and Mechanism of Potassium Salt Flux on Alloys by Different Experimental Methods. The flux can be precipitated under certain conditions of potassium, resulting in reduced surface tension of the alloy and effectively prevent lead segregation; can reduce the amount of slag and hydrogen content in the alloy; also make the alloy porous structure, thereby enhancing the anti-friction performance and not Reduce the strength and toughness. Practice has proved that the use of the potassium salt without refining you can get high-quality castings.