论文部分内容阅读
我们采用锡、锌、铝配制低熔点合金用来钎焊铝-铝、铝-不诱钢、铝-铜、铝-钢等薄壁容器、薄壁管件及薄板等工件取得成功。一、钎料的配制:锡87％、锌10％、铝3％,用天平称出三种原料的重量。先将锡放入坩埚升温至300℃全部熔化。再加入锌升温到400～450℃,保温5分钟,搅拌均匀后再保温五分钟。最后加铝,升温到550～600℃,保温五分钟,再搅拌均匀。加铝后如熔化速度慢,可适当升温,但应控制在660℃以内。熔好的钎料铸成φ6毫米的棒料,注意随浇随搅拌以保证成分均匀。
We use tin, zinc, aluminum preparation of low melting point alloys for brazing aluminum - aluminum, aluminum - stainless steel, aluminum - copper, aluminum - steel and other thin-walled containers, thin-walled tube and sheet metal parts such as success. First, the preparation of solder: tin 87%, zinc 10%, aluminum 3%, weighing the weight of the three raw materials with a balance. First put the tin into the crucible heated to 300 ℃ all melted. Then add zinc and heat to 400 ~ 450 ℃, heat for 5 minutes, stir for another five minutes. Finally, add aluminum, heated to 550 ~ 600 ℃, incubated for five minutes, and then stir. After the aluminum melting speed is slow, may be appropriate temperature, but should be controlled within 660 ℃. Molten solder cast φ6 mm bar, pay attention to with the pouring with stirring to ensure uniform ingredients.