您当前的位置：首页 | Preparation of the bath when the general need to pay attention to what issues?Preparation of the bath when the general need to pay attention to what issues?
Preparation of the bath when the general need to pay attention to what issues?
Preparation is very sensitive to the bath pot boil. All raw chemical materials that will last into the plating tank plus all the water is absolutely wrong. In the preparation of the bath, to points have sequential feeding. Especially when certain chemical substances chemical reaction occurs between, but must distinguish and taboos, otherwise, it will fail and lead to the preparation of waste materials.
Under normal circumstances, is first placed in the plating tank l / 3 ~ 1/2 of water (specific request, it is distilled water), and then were dissolved in a variety of chemical materials. Should normally be dissolved first complexing agent or auxiliary salt, then dissolved in the main salt, conductive salt. For the main salt insoluble, first with a little water into a paste, slowly dissolving into the bath, pay attention to stir, then add the dissolved part of another part finished. Some need to be heated to dissolve should first heated and then dissolved into the tank. Additives in the final to join, and to take bath before joining Hull Cell tests do first, and then determine the best dosage according to the amount added.
In addition, the preparation of the bath is best to unify the material specifications, do not just join industrial-grade material should be disposed of impurities before adding. Involving toxic and hazardous materials, to produce strictly according to the requirements of safe operation, and be sure to wear a good labor protection protective equipment.
Preparation before feeding calculating pay attention to the following points: First, some chemical raw materials containing crystalline water, be prepared to be charged, and some recipes did not write the main salt water of crystallization or just write the name of a metal, such as alkaline zinc write metallic zinc 8g / L, zinc oxide is added, according l0g / L added; second is the purity of the source material should be noted, such as industrial copper sulfate, copper sulfate containing only 95% of the amount, and some potassium chloride content of only 90%, etc., the use of such materials in the preparation, we need to make up to 100% by volume of content, that is to add some order to achieve the requirements of process specifications, of course, now do not have to take the process of preparing the bath recipe the upper limit can be lower or intermediate values.