Volatility-resistant chloride covering agent with high heat capacity and used for heat treatment lead bath
A chloride, high heat capacity technology, applied in the field of alloys, can solve the problems of inability to effectively prevent the volatilization of lead vapor and unstable performance, and achieve the effects of improving the surface quality of the steel wire, excellent volatilization resistance, and low price
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Embodiment 1
[0019] A volatile chloride resistant cover for heat treating lead baths with high heat capacity at 490°C. By weight percentage, the chemical composition of the material is: LiCl: 10.5wt.%, SrCl 2 :6.2wt.%,CaCl 2 : 2.8wt.%, KCl: 12.4wt.%, B 2 o 3 : 2.6wt.%, FeO: 2.1wt.%, the balance is CaO. Preparation method: raw materials LiCl, SrCl 2 , CaCl 2 , KCl, B 2 o 3 , The particle radius of FeO and CaO is kept below 0.5mm. Put the raw materials weighed according to the above ratio in the mixer for uniform mixing. Due to SrCl 2 , CaCl 2 and CaO easily absorb moisture and CO in the air 2 , The mixing process must be carried out in a dry atmosphere, and the mixing time cannot be longer than 20 minutes. The salt-containing protective agent mixed evenly must be packaged in plastic bags.
[0020] The material has a good effect in the range of 480-580 degrees. Its characteristic is that it can melt by itself in this temperature range, forming a solid-liquid two-phase state to ...
Embodiment 2
[0023] A volatile chloride resistant cover for heat treating lead baths with high heat capacity at 520°C. By weight percentage. By weight percentage, the chemical composition of the material is: LiCl: 10.0wt.%, SrCl 2 :6.5wt.%,CaCl 2 : 2.3wt.%, KCl: 10.8wt.%, B 2 o 3 : 2.6wt.%, FeO: 2.1wt.%, the balance is CaO. Preparation method: raw materials LiCl, SrCl 2 , CaCl 2 , KCl, B 2 o 3 , The particle radius of FeO and CaO is kept below 0.5mm. Put the raw materials weighed according to the above ratio in the mixer for uniform mixing. Due to SrCl 2 , CaCl 2 and CaO easily absorb moisture and CO in the air 2 , The mixing process must be carried out in a dry atmosphere, and the mixing time cannot be longer than 20 minutes. The salt-containing protective agent mixed evenly must be packaged in plastic bags.
[0024] The material has a good effect in the range of 480-580 degrees. Its characteristic is that it can melt by itself in this temperature range, forming a solid-liq...
Embodiment 3
[0027] A volatile chloride resistant cover for heat treating lead baths with high heat capacity at 540°C. By weight percentage. By weight percentage, the chemical composition of the material is: LiCl: 10.5wt.%, SrCl 2 :6.8wt.%,CaCl 2 : 2.1wt.%, KCl: 13.8wt.%, B 2 o 3 : 2.6wt.%, FeO: 2.1wt.%, the balance is CaO. Preparation method: raw materials LiCl, SrCl 2 , CaCl 2 , KCl, B 2 o 3 , The particle radius of FeO and CaO is kept below 0.5mm. Put the raw materials weighed according to the above ratio in the mixer for uniform mixing. Due to SrCl 2 , CaCl 2 and CaO easily absorb moisture and CO in the air 2 , The mixing process must be carried out in a dry atmosphere, and the mixing time cannot be longer than 20 minutes. The salt-containing protective agent mixed evenly must be packaged in plastic bags.
[0028] The material has a good effect in the range of 480-580 degrees. Its characteristic is that it can melt by itself in this temperature range, forming a solid-liq...
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