Iron wire degreasing and impurity removing method and application of iron wire degreasing and impurity removing method to galvanization production technology

Abstract

The invention discloses an iron wire degreasing and impurity removing method. After the wire drawing procedure, an iron wire is subjected to degreasing and impurity removal under the high-temperature oxygen-free environment. The method is easy to control, safe, easy to operate and high in treatment efficiency, the treated iron wire is bright, and the process is environment-friendly and free of pollution. The invention further provides a production technology applying the above iron wire degreasing and impurity removing method to conduct iron wire galvanization. The production technology comprises the wire drawing procedure, the front arrangement procedure, the cooling procedure, the galvanization procedure, the drying procedure and the like, all of which are sequentially conducted. A produced galvanized iron wire plated layer is firm, flat, bright and long in service life. Compared with a traditional galvanization technology, water resources are saved in the process, zero emission of pollutants is achieved, the process is environment-friendly and easy to operate, the occupied area of integral equipment is small, and the running cost is low. The iron wire degreasing and impurity removing method and the production technology are suitable for metal product surface galvanization treatment.

Description

technical field [0001] The invention belongs to the field of metal surface treatment, and relates to a production process of iron wire degreasing, impurity removal and galvanizing, in particular to an iron wire degreasing, impurity removal method and its application in the galvanizing production process. Background technique [0002] Metal materials are easy to rust when stored or used for a long time. In order to prolong the service life of metal workpieces, one of the commonly used methods is to galvanize the surface. The zinc layer can not only prevent oxidation of metal workpieces and prolong its service life, but also beautify the metal surface and expand its application range. [0003] Before the workpiece is galvanized, it must be degreased and removed to make the surface of the workpiece smooth and free of impurities, so as to ensure that the coating layer of the workpiece after galvanizing is firm, bright and smooth, and durable. Therefore, the pretreatment step of ...

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Problems solved by technology

[0004] ① The temperature of the liquid and the time of washing are not easy to control. If the temperature of the liquid is low, the degreasing and impurity removal effects will not be good, which will affect the coating quality of the galvanized workpiece; if the washing time is short, the degreasing and impurity removal effects will not be obvious, and the time will The workpiece itself will also be corroded by acid or lye, resulting in an increase in the defective rate of galvanized parts;

[0005] ② After pickling or alkali washing, it is necessary to wash repeatedly to remove the acid or lye on the surface of the workpiece. This process not only wastes a lot of water resources, but also requires sewage treatment before it can be discharged up to standard. This process increases production. cost, aggravating environmental pollution, but also complicating the operation process;

[0006] ③Pickling, alkali washing or water washing, etc. need to set up various equipment pools, which occupy a large area and are not conducive to cost saving

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