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  • What is the purpose of stainless steel surface treatment

    2023-05-31
    Dalian metal surface treatment mainly aims to remove oil and dirt. Its main components are sodium carbonate, sodium metasilicate, etc., and anionic surfactants or dispersants are added to make industrial cleaning agents. Machines such as ultrasonic machines are used to remove impurities. The shortcomings of this treatment agent are mainly reflected in the complex processing process, which requires heating the treatment agent and consumes a large amount of water resources; At the same time, cleaning takes a relatively long time. It mainly forms a phosphating film on the outer surface of the metal through the joint action of substances such as phosphoric acid and surfactants. It can not only achieve the purpose of oil and rust removal, but also isolate air and achieve the purpose of rust prevention.
  • Surface heat treatment can significantly improve the fatigue strength of workpieces

    2023-05-31
    However, its surface hardening effect is limited, with a surface hardness of about 1000HV. In addition, the hard chromium plated coating is mechanically combined with the mold base material, which is prone to detachment when the forming pressure is high. Once the coating is detached, its tensile resistance will also be lost. When the surface hardening layer is worn, galling will occur again.
  • The surface treatment industry belongs to the industrial field of supporting processing properties

    2023-04-28
    The surface treatment industry belongs to the industrial field of supporting processing properties:
    The purpose of Dalian Metal Surface Treatment and Environmental Protection Rectification is to make surface treatment enterprises more formal, rather than making them disappear. At present, there are over 15000 surface treatment enterprises in China, among which enterprises above designated size have an annual output value of 100 billion yuan and a processing output of 1 billion square meters. Surface treatment is not only an important processing link in the traditional mechanical industry, but also an important supporting link in the high-end equipment manufacturing industry, advanced information technology industry, and other fields. Its technological level and development level directly determine the quality of the development of other industrial industries. Therefore, the surface treatment industry can be said to be irreplaceable in its future development.
  • Common methods for surface treatment of metals in Dalian

    2023-04-28
    The surface treatment of Dalian metal mainly comes from the cleaning water of surface and anodic oxidation processes. Containing metal ions, phosphates, and inorganic salts are low CODcr compounds, usually treated with physicochemical methods. Organic wastewater: It mainly comes from wastewater with high chromaticity and CODcr, such as oil removal and coloring. It contains high organic substances such as oils and dyes. For this type of wastewater, chemical oxidation precipitation must be used first, and then biochemical methods must be used to achieve the degradation of chromaticity and CODcr. After treatment, it can be reused for production or discharge.
  • The difference between electroplating and electrophoresis in Dalian metal surface treatment:

    2023-03-23
    The difference between electroplating and electrophoresis in Dalian metal surface treatment:
    Metal surface treatment technology can protect and strengthen the surface of workpieces without increasing or increasing too much cost, or repair waste and faulty workpieces, thereby improving the service life and reliability of products, improving the performance and quality of mechanical equipment, and enhancing the competitiveness of products. Therefore, metal surface treatment technology is of great significance for saving materials and energy.
  • Development Trend and Direction of Metal Surface Treatment in Dalian

    2023-03-23
    Development trend and direction of metal surface treatment in Dalian:
    Dalian metal surface treatment technology is a broad, profound and practical basic technology, as well as a newly emerging frontier discipline. Surface technology originated in ancient times, but only since the beginning of this century, with the extensive research on natural phenomena and the rapid development of industry and science and technology, has a series of improvements, combinations, and innovations been made to traditional surface technology, resulting in a large number of modern surface technologies.
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    Address: No. 9-4, Songlan Industrial Park, No. 3, Songlan street, Dalian Economic and Technological Development Zone, Liaoning Province
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