Supersonic spray coating method of crystallizer copper plate
A crystallizer copper plate and supersonic flame technology, which is applied in the direction of coating, molten spraying, metal material coating process, etc., can solve the problem of affecting the use effect of the crystallizer copper plate, the life of the mold copper plate is not long enough, and the continuous casting operation rate is not enough High-level problems, to achieve the effect of coating bonding ability and porosity reduction, ensuring the quality of spraying
Active Publication Date: 2010-06-16
XIXIA LONGCHENG SPECIAL MATERIALS CO LTD
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Problems solved by technology
However, the bonding strength of spraying has not been high, and it is easy to fall off, which easily affects the use effect of the crystallizer copper plate
The crystallizer copper plate produced by the above method is still not long enough, the performance and price are relatively low, the copper plate is replaced more frequently, and the continuous casting operation rate is still not high enough
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[0014] The supersonic flame spraying method for the crystallizer copper plate is carried out according to the following steps: firstly, the surface of the mold copper plate is cleaned and sandblasted with the conventional cleaning process; 180° guard plate, such as figure 1 , 2 , The angle between the copper plate working surface and the guard plate shown in 3 can be 90 °, 135 ° or 180 °; then the nickel-based alloy powder spray coating such as NiCrBSi alloy powder is packed into the supersonic flame spraying equipment, and the crystallization is carried out according to the conventional procedure The surface of the copper plate of the crystallizer is sprayed; finally, after spraying the copper plate of the crystallizer, it is kept at 800°C-950°C for 0.5-3 hours for melting and diffusion vacuum heat treatment, so that the coating and the base material produce a miscible diffusion layer, which is formed by the original mechanical bonding. It is transformed into interpenetratin...
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The invention discloses a supersonic spraying method for crystal implement copper plates, which is characterized in that the operation of the method is carried out according to the following steps that: firstly, cleaning and sand blasting treatments are carried out to the surface of a crystal implement copper plate through a conventional cleaning process; secondly, four peripheries of thecrystal implement copper plate are provided with protective plates at an angle of between 90 and 180 degrees with a working surface of the copper plate; thirdly, nickel-base alloy powder spraying paint is putinto a supersonic flame spraying device so as to spray the surface of the crystal implement copper plate through a conventional process; fourthly, after spraying, the crystal implement copper plate isinsulated at a temperature of between 800 and 950 DEG C for 0.5 to 3 hours for melting-diffusing vacuum heat treatment, and then is cooled through nitrogen, argon or helium; fifthly, the cooled crystal implement copper plate is subject to aging treatment at a temperature of between 400 and 500 DEG C for 1 to 3 hours. The supersonic spraying method is simple in the whole spraying process and uniform in spraying thickness, saves spraying material, and is strong in coating binding capacity and is wearproof.
Description
technical field [0001] The invention belongs to the technical field of spraying, and in particular relates to a supersonic flame spraying method for a crystallizer copper plate. Background technique [0002] In the known technology, in the past, the crystallizer copper plate was plated with Cr, NiFe, NiCo, CoNi, Ni or Ni+Cr in order to improve the wear resistance of the working surface, so as to improve the service life of the copper plate. Spray wear-resistant coating on the copper plate of the crystallizer, as the patent of the authorized announcement date on November 28, 2007, the authorized announcement number CN 100351420C discloses a method for supersonic flame spraying the copper plate of the crystallizer, which is characterized in that it includes the following method steps: first use The conventional cleaning process cleans and blasts the surface of the crystallizer copper plate; secondly, takes 50%-95% of nickel-based alloy particles according to the total mass per...
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IPC IPC(8): C23F17/00C23C4/06C23C4/02C23C4/18C21D9/00C23C4/129
Inventor 朱书成王希彬曹国超吕艳伍李仿
Owner XIXIA LONGCHENG SPECIAL MATERIALS CO LTD