割炬和焊炬长期使用后,由于铜管内外产生大量锈垢,严重影响火焰燃烧,使切割和焊接质量下降。最后不得不放弃使用。因此,近年来积存了大量旧割、焊炬。为了修旧利废,经过多次反复实验,找到了一种清洗割炬和焊炬的有效方法。其清洗液的配方如下: 1.硝酸90克,磷酸15克,三氯化铁10克,水591克。 2.重铬酸钠5克,硫酸50克,磷酸10克,硝酸5克,水300克。配方1用于处理割、焊炬外表面,配方2用于处理割、焊炬的内表面。处理过程:1.在常温下,将割(焊)炬放入配方1溶液中浸泡1～2分钟,从溶液中取出后,把经过化学处理的脱脂棉浸透5％浓度的碳酸溶液,覆盖在被处理的金属表面上,经过适当时间取下,再用5％浓 After long-term use of cutting torch and welding torch, due to the large amount of rust generated inside and outside the copper pipe, which seriously affects the flame burning, the quality of cutting and welding is declining. Finally had to give up. Therefore, a large number of old cutting and welding torches have been accumulated in recent years. In order to repair the old scrap, after repeated experiments, found an effective method of cleaning the torch and torch. The cleaning solution is as follows: 1. 90 grams of nitric acid, 15 grams of phosphoric acid, 10 grams of ferric chloride, 591 grams of water. 2 sodium dichromate 5 grams, 50 grams of sulfuric acid, phosphoric acid 10 grams, 5 grams of nitric acid, 300 grams of water. Formulation 1 was used to cut the torch outer surface and recipe 2 was used to handle the torch inner surface. Processing: 1. At room temperature, the cut (welding) torch into the formula 1 solution soak for 1 to 2 minutes, removed from the solution, the chemically treated absorbent cotton soaked 5% concentration of carbonated solution, covered in was Treated metal surface, after an appropriate time to remove, and then 5% concentrated