Hardening agent for investment casting of mold shells
An investment casting and hardening agent technology, which is applied in the direction of casting molding equipment, molds, and mold components, can solve problems such as harsh working conditions, low high-temperature strength and residual strength, and high viscosity of hardening liquid, so as to reduce the The probability of breakout and cracking, high normal temperature strength and high temperature strength, and strong penetration hardening ability
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[0010] Example 1
[0011] Mix 40 parts by weight of crystalline magnesium chloride and 20 parts by weight of ammonium chloride, directly add them to the hardener tank to dissolve, and then add 0.4 parts by weight of fatty alcohol polyoxyethylene ether and stir well to obtain.
[0012] The measured strength at room temperature is 1.92 Mpa, the high temperature strength is 1.21 Mpa, and the residual strength is 1.35 Mpa.
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[0013] Example 2
[0014] Mix 50 parts by weight of crystalline magnesium chloride and 15 parts by weight of crystalline aluminum chloride, directly add them to the hardener tank to dissolve, and then add 0.3 parts by weight of fatty alcohol polyoxyethylene ether and stir well to obtain.
[0015] The measured normal temperature strength is 1.81 Mpa, the high temperature strength is 1.14 Mpa, and the residual strength is 1.28 Mpa.
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