A composite material containing stainless steel
A composite material, stainless steel technology, applied in the field of materials composed of ceramics, pure metals and stainless steel, can solve the problems of poor atmospheric corrosion resistance, surface oxidation, high cost, good impact resistance, tight bonding, corrosion resistance improved effect
Active Publication Date: 2017-11-07
重庆巨源阿洛一新材料开发有限公司
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Problems solved by technology
The biggest disadvantage of 430 stainless steel in the above applications is that it has poor resistance to atmospheric corrosion and is extremely susceptible to corrosion by chemicals in the air, resulting in surface oxidation
Moreover, 430 stainless steel has poor resistance to acid and is prone to rust during use.
How to make 430 stainless steel overcome the shortcomings of easy rust and corrosion during use is an important research topic
This method is complex and requires a large amount of metallic silver, which is extremely expensive.
Method used
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Embodiment Construction
[0018] The content of the present invention is further described below by way of examples.
[0019] The ceramic layer is selected to add 3% Y 2 o 3 Zirconia ceramics calcined as a sintering aid, wherein 20% by mass of cerium oxide is added. The stainless steel layer is 430 stainless steel, the reaction vessel is a vacuum furnace, and the vacuum degree of the vacuum furnace is maintained at 10 -5 -10 -4 Pa, ceramic layer, stainless steel and buffer layer metal are all cylinders with a diameter of 15mm. Composite materials were prepared according to the conditions in the table below.
[0020]
[0021] It can be seen from the examples that the thicker the ceramic layer, buffer layer, and stainless steel layer, the higher the frequency of induction heating and the bonding temperature, and the longer the bonding time. When the thickness of ceramic layer, buffer layer and stainless steel layer are all 5cm, and the bonding temperature is 1057℃, the bonding force of the compos...
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Abstract
The invention discloses a composite containing stainless steel. The composite comprises a ceramic layer, a buffer layer and a stainless steel layer, wherein the ceramic layer is made of zirconia ceramic, cerium oxide accounting for 15-25% by mass is added in zirconia ceramic, the buffer layer is an Nb metal layer or an Mo metal layer, the stainless steel layer is made of 430 stainless steel, and the ceramic layer, the buffer layer and the stainless steel layer are sequentially overlapped and fused together through induction heating. According to the scheme, 430 stainless steel and zirconia ceramic can be effectively bonded, so that the corrosion resistance of 430 stainless steel is greatly improved; furthermore, 430 stainless steel and zirconia ceramic are tightly bonded, so that impact resistance is good.
Description
technical field [0001] The invention relates to a composite material containing stainless steel, in particular to a composite material composed of ceramics, pure metal and stainless steel. Background technique [0002] Stainless steel and ceramic materials are two kinds of materials that are widely used in industry and life. Stainless steel materials have good acid and alkali corrosion resistance, tensile, bending resistance, impact resistance and other mechanical properties, while ceramic materials have high hardness and good wear resistance. Due to their different properties, the two materials are often used in different fields. [0003] 430 stainless steel is one of the most widely used stainless steel series. Because of its smaller coefficient of thermal expansion than austenitic stainless steel, it is often used as architectural decoration, hot water supply system, sanitary utensils, and durable household appliances. The biggest disadvantage of 430 stainless steel in t...
Claims
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IPC IPC(8): C04B37/02
CPCC04B37/026C04B2237/122C04B2237/704C04B2237/706C04B2237/708
Inventor 李超林
Owner 重庆巨源阿洛一新材料开发有限公司