How to choose cleaning equipment and cleaning agent for auto parts?
April 07, 2022
The market demand of China's auto industry is huge. With the development of technology and the improvement of environmental protection requirements, in the production process of auto parts, the parts cleaning process also puts forward higher requirements for cleaning equipment and cleaning agents.
1. Commonly used cleaning equipment Commonly used cleaning equipment includes: immersion cleaning, spray cleaning, high pressure spray cleaning and ultrasonic cleaning equipment.
2. General requirements for metal parts cleaning The general requirements for metal cleaning of auto parts are as follows: the cleaning speed is fast, and the metal surface dirt can be completely removed within the cleaning time set by the cleaning machine process; non-corrosive to the cleaning machine and the parts to be cleaned; low cost of cleaning agents, Environmental protection, mild odor; during the cleaning process, no insoluble matter remains on the surface of the cleaning object, no new dirt is generated, no new covering layer that is harmful to subsequent processes is formed, and product quality is not affected. In order to meet the process requirements when recommending cleaning agents, engineers must balance many factors such as cleaning equipment and cleaning methods, cleaning parts materials, surface dirt types on parts, the next process, water quality and workshop environment.
3. The choice of cleaning agent Under some specific process conditions, the influence of subsequent processes must be considered when recommending cleaning agents. For example, in a certain transmission shaft and tooth production process: gear grinding - spray cleaning (intermediate cleaning) - shot blasting - spray cleaning (final cleaning). ), in which the next shot peening process should be considered in the intermediate spray cleaning process. After the parts are cleaned by the cleaning agent and dried, there should be no viscous cleaning agent residue or covering film on the surface of the parts, otherwise it will affect the shot peening process and bring about quality defects. We all know that cleaning agents are mainly used to remove cutting fluid, grinding dust and metal particles on the surface of the workpiece, and provide short-term rust prevention. The anti-rust ability of general cleaning agents is not enough to ensure the anti-rust between processes under the workshop conditions of high humidity and temperature, especially in the case of high workshop humidity and temperature in summer. With the advancement of technology and the requirements of environmental protection, new, efficient, professional and environmentally friendly cleaning agents must be the trend of future development. In the metal processing industry, according to the characteristics of metal materials, the cleaning agent is no longer a simple decontamination effect. For example, the cleaning agent is required to effectively decontaminate, and at the same time, it can prevent the rust of the metal film and enhance the corrosion resistance of the product. capacity, etc., which puts forward higher requirements for the additives added in the cleaning agent. A well-known compressor manufacturer had a problem that parts rust soon after cleaning during its processing, and replaced the cleaning agent product with ultra-low foam and high rust-proof ability. After trial according to the supplier's management and maintenance plan , to meet the requirements of rust prevention between processes.
