Surface fluorination protection method for ceramic material
A ceramic material and surface fluorination technology, which is applied in the direction of metal material coating process, coating, solid-state diffusion coating, etc., can solve the problems of ceramic surface such as unsatisfactory heat resistance and wear resistance, and difficult surface treatment. To avoid the unenvironmental spraying and baking process, improve the surface hardness and wear resistance, and protect the surface
Inactive Publication Date: 2013-04-17
青岛红星化工厂有限公司
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[0004] The technical problem to be solved by the present invention is to propose a method for protecting the surface of ceramic materials from fluorination, so as to improve the prior art ceramics which are not easy to be surface treated by anodic treatment, and the method of covering the surface of the prior art ceramics with a ceramic layer, The ceramic layer is easily separated from the ceramic surface, which leads to problems such as unsatisfactory heat resistance and wear resistance of the ceramic surface in the prior art
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[0024] see figure 1 The surface fluorination method of ceramic material in the first embodiment of the present invention, its step is first to put a ceramic material workpiece 100 in an airtight cavity 200 (step 500), wherein the ceramic material workpiece 100 can be directly placed in on the workbench 210, or hang the ceramic material workpiece 100 on a hanging jig (not shown in the figure), and then place the ceramic material workpiece 100 together with the hanging jig on the workbench 210. It is limited to the arrangement disclosed in this embodiment. Wherein, the ceramic material workpiece 100 disclosed in the present invention is made of ceramic (Magnesium alloy) or aluminum alloy (Aluminum alloy), but those skilled in the art can also choose other ceramic material alloys as the workpiece to be surface fluorinated. , is not limited to this embodiment.
[0025] Next, a vacuum pump connected to the chamber 200 evacuates the chamber 200 to reduce the oxygen content (step 5...
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The invention discloses a surface fluorination protection method for a ceramic material. The method comprises the steps that a ceramic material workpiece is placed into an air-tight cavity, and vacuumized; the oxygen content in the cavity is decreased; mixed gas containing fluorine is supplied to the cavity; fluorine reacts with the surface of the ceramic workpiece; and a fluoride protection layer is generated on the surface of the workpiece. The resistance to acid and alkali erosion of the workpiece is protected, and the surface hardness and wear resistance of the workpiece are improved.
Description
technical field [0001] The invention relates to a surface treatment method, in particular to a surface fluorination protection method for ceramic material workpieces. Background technique [0002] With the development of science and technology, the design of various products is now moving towards the goal of light weight and environmental protection. Therefore, a considerable degree of consideration needs to be given to the development of product materials and the selection of characteristics. Among them, the application range of ceramic materials is the most extensive. [0003] At present, in order to improve the surface properties of ceramics, most of the solutions are to use other materials to stick to the surface of the ceramics, and to reinforce the structural strength and surface properties of the ceramics by adding ceramic materials, or to use spraying and baking varnish to cut off the contact between the ceramic surface and Exposure to outside air to achieve the pur...
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IPC IPC(8): C04B41/85C23C8/08
Inventor 纪成友刘志龙
Owner 青岛红星化工厂有限公司