Surface cleaning process is an indispensable and important part in the industrial production process. It is used to remove oil, rust, scale, metal chips and other pollutants on the surface of parts, so as to ensure the quality of subsequent processing and other treatments. Cleaning process is widely used in multiple processes such as raw materials, processing, heat treatment, finishing, post-processing and packaging. The selection of appropriate cleaning methods and cleaning agents also further affects the surface cleanliness of parts and the quality requirements of cleaning.
This article mainly describes the surface cleaning process involved in the entire order-processing-shipping process of a part. The content is long and detailed. The article only represents the editor’s point of view. If you have any questions, please correct me.

In the process from parts processing to shipment, surface cleaning is a very critical link, which involves the following cleaning treatments:
Raw material processing
Goal: Remove scale, rust, oil stains, etc. on the surface of raw materials to ensure the surface is clean before processing.
Methods: Pickling, alkali cleaning, sandblasting, degreasing agent cleaning, etc.
Applicable: Plates, bars, castings, forgings, etc.
After rough processing
Goal: Remove cutting fluid, cooling oil and metal chips during processing to prevent these residues from affecting subsequent processes.
Methods: Ultrasonic cleaning, degreasing agent cleaning.
-Applicable situations: After machining, turning, milling and other processes.
Before and after heat treatment
Before heat treatment: Surface cleaning can remove oil or other contaminants on the surface of parts to prevent the formation of scale or carbide at high temperature.
After heat treatment: Remove scale and quenching oil residues generated by heat treatment.
Methods: Chemical cleaning (such as pickling), sandblasting, alkali cleaning.

After finishing
Goal: After finishing, further remove the machining fluid, metal chips and oil to provide a clean foundation for surface treatment.
Method: Use environmentally friendly cleaning agents, ultrasonic cleaning, etc.
Before surface treatment
Goal: Ensure that the surface of the parts is clean and free of pollution, and ensure the adhesion and uniformity of surface treatments such as electroplating, painting, and anodizing.
Method: Rust remover cleaning (remove oxides or rust spots), alkali cleaning, acid cleaning (remove oil and surface oxide layer), deionized water cleaning (avoid water stains or residues).
Before inspection
Goal: Before the size, appearance or performance inspection, clean the surface of the parts to ensure that there are no interferences on the surface and improve the accuracy of the inspection results.
Method: Ultrasonic cleaning or steam cleaning.
Before finished product processing
Goal: Remove dust, fingerprints or residues on the surface of the parts to prepare for rust prevention, protection or packaging processes.
Method: Simple cleaning agent wiping or water rinsing.
Before packaging
Goal: Prevent rust or contamination of parts during transportation and storage, and ensure a clean surface.
Method: Apply anti-rust oil or cover with protective film after cleaning the surface.
Precautions during cleaning
Environmentally friendly cleaning agent: Try to choose environmentally friendly and degradable cleaning agents that meet current environmental protection requirements.
Anti-rust treatment: Perform anti-rust treatment immediately after cleaning to avoid secondary pollution or oxidation.
Cleaning equipment: Select the cleaning method according to the shape and precision requirements of the parts (such as ultrasonic cleaning is suitable for cleaning the inside of complex parts).

How to choose a surface treatment chemical agent factory?
When choosing a surface treatment chemical agent factory, you should consider its technical strength, product quality, environmental protection and safety, production capacity, customer service, qualification certification and industry experience. Choose a factory with independent research and development capabilities and rich experience to ensure that the product is stable, environmentally friendly, meets diverse needs, and can provide timely delivery and professional technical support. Customer reputation and success cases are also important references to help ensure the reliability and satisfaction of cooperation.
JiChuan Chemical is a surface treatment environmental protection technology company integrating R&D, production and sales. Its headquarters is located in Songshan Lake, Dongguan. It is facing the world and has been exported to dozens of countries including Japan, Vietnam, Russia, South Korea, Singapore, India, France, etc. The company takes environmental protection as its purpose, independent innovation as its core, and customers first. Continuously reducing costs and improving efficiency for customers is our company’s eternal pursuit, providing professional surface treatment solutions for global customers, including surface treatment agents, consumables and equipment.
Mainly for cleaning, grinding, polishing, rust prevention, passivation and other surface treatment production of industrial cleaning agents, rust inhibitors, paint strippers, screen washing water, wax removal water, degreasing agents, cutting fluids, abrasive polishing agents, brighteners and other environmentally friendly surface treatment agents, chemicals and consumables, while selling deburring, chamfering, descaling, grinding, polishing, cleaning and drying and other surface treatment industrial automation equipment, through import and export commodity qualification certification, export sea freight appraisal report quality freight requirements, as well as MSDS, SDS, SGS and other chemical quality technical inspection reports.
Alibaba store address:https://jichuangchemical.en.alibaba.com/?spm=a2700.shop_cp.88.12.7e23730eNSvoXp
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