A dental cobalt-chromium-molybdenum-copper antibacterial ceramic alloy and heat treatment method thereof

Abstract

The purpose of the invention is to provide a dental cobalt-chromium-molybdenum-copper antibacterial baked porcelain alloy which is mainly used for crowns, bridges and the like of baked porcelain teeth. The dental cobalt-chromium-molybdenum-copper antibacterial baked porcelain alloy comprises the following specific chemical components (wt%): less than or equal to 0.08% of C, 16-26% of Cr, 4-10% of Mo, 0.5-2% of W, 0.1-0.5% of Re, less than or equal to 0.1% of Ni, 1-6% of Cu and the balance of Co, wherein RE is a rare earth element. The cobalt-based baked porcelain alloy provided by the invention is added with appropriate copper element and rich copper precipitated phase is evenly dispersed and distributed through special heat treatment so that the alloy is enabled to have broad-spectrum antibacterialfunction. The alloy provided by the invention contains no toxic element and has excellent resistance to oxidation and corrosion, and can be well matched with the existing porcelain powder in use. In addition to being used as the baked porcelain alloy, the dental cobalt-chromium-molybdenum-copper antibacterial baked porcelain alloy also can be used in the fields of implants for surgery, medical equipment, food catering equipment, jewelry and the like.

Description

technical field [0001] The invention relates to a dental cobalt-chromium-molybdenum-copper antibacterial porcelain alloy, and in particular provides a cobalt-chromium-molybdenum-copper antibacterial porcelain alloy for denture restorations such as porcelain crowns and crown bridges. Background technique [0002] Dental disease prevalence rate is all very high in countries in the world, and with regard to my country, the dental disease patient reaches as many as 800,000,000. Dental defect, dentition defect and missing dentition are common diseases in dental diseases, and dentures are usually used for restoration. Alloy materials have excellent mechanical properties such as strength, hardness, wear resistance, durability, and toughness. Especially after the lost-wax casting technology is introduced into the dental field, alloys have become the main restoration materials. At present, the most widely used alloys in my country are non-precious casting metals. Alloys, of which nic...

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Problems solved by technology

However, the biggest problem with nickel-chromium alloys is that some patients will have allergic symptoms, mainly due to the sensitization hazard of nickel element. The relevant departments of some European countries warn against the use of alloys with a nickel content of more than 1%, and the nickel content used in ceramics is common. Between 62-82%, so nickel-chromium alloy porcelain teeth have actually lost the market

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