The important role of silicon carbide sintering furnace in the research and development of high-perf
Silicon carbide sintering furnace is a key equipment for sintering silicon carbide materials. It can sinter silicon carbide ceramic materials at high temperature in a vacuum or a specific atmosphere environment to achieve the required density and performance. It is widely used in aerospace, nuclear industry, machinery manufacturing and other fields.Working principle of vacuum reaction sintering furnaceVacuum sintering principle: The air in the furnace is extracted by a vacuum pump to form a vacuum environment, reducing the impact of oxygen and moisture in the air on silicon carbide ceramic materials, and then the heating element is used to make the silicon carbide material reach a high temperature. At high temperatures, atomic diffusion intensifies, sintering necks form between particles, grain growth and other processes occur, thereby improving the density and performance of the material.
Atmosphere sintering principle: Specific atmosphere gases such as hydrogen, nitrogen, inert gas, etc. are introduced into the furnace. These gases can play a protective role during the sintering process to prevent the silicon carbide material from being oxidized, or participate in chemical reactions to promote the sintering process. Structural composition
Furnace body: It is the outer shell of the sintering furnace. It is generally made of stainless steel or other high-temperature resistant materials. It has good sealing performance and can withstand high temperature and certain pressure. It can be divided into horizontal and vertical structures.
Heating system: Common heating elements include graphite, molybdenum wire, tungsten wire, etc. The heating of the heating element makes the silicon carbide material in the furnace reach the required sintering temperature. The heating methods include resistive heating and induction heating.
Temperature control system: Digital programmable intelligent temperature control system, such as thermocouple, far-infrared optical thermometer, etc., can be used to accurately measure and control the temperature in the furnace to ensure temperature uniformity and temperature control accuracy.
Vacuum system: It consists of vacuum pump, vacuum valve, vacuum pipeline, etc., which is used to evacuate the furnace into a vacuum state to meet the requirements of vacuum sintering.
Cooling system: Generally, a pure water cooling system is used to cool the furnace body, heating elements, etc. through circulating water to prevent equipment from being damaged due to overheating. A digital flow monitoring system can also be set to monitor the cooling water flow rate and flow rate.
Gas supply system: used to introduce various protective atmosphere gases or reaction gases, such as hydrogen, nitrogen, inert gas, etc., into the furnace, and can accurately control the flow and pressure of the gas.Features of silicon carbide vacuum sintering furnaceGood high temperature performance: The maximum operating temperature can reach 1800℃, which can meet the sintering requirements of silicon carbide materials at high temperatures.
Accurate temperature control: The intelligent temperature control system is adopted, and the temperature control accuracy can reach ±1℃. It can accurately heat up according to the given heating curve, and can store multiple different process heating curves.
Flexible atmosphere control: According to the process requirements, the atmosphere in the furnace can be flexibly controlled, such as vacuum, hydrogen, nitrogen, inert gas, etc., to meet different sintering process requirements.
High degree of automation: Equipped with a comprehensive PLC water, electricity, and gas automatic control and protection system, it can realize automatic loading, vacuuming, heating, insulation, cooling, unloading and other full-process automation operations, improve production efficiency and product quality, and reduce labor intensity.Application fieldsCeramic material preparation: used to prepare high-performance silicon carbide ceramic products, such as ceramic cutting tools, ceramic bearings, ceramic seals, ceramic crucibles, etc. These products have excellent properties such as high strength, high hardness, high temperature resistance, wear resistance, and corrosion resistance, and are widely used in machinery manufacturing, chemical industry, metallurgy, aerospace and other fields.
Powder metallurgy industry: used to produce metal powders and composite metal powders such as tungsten carbide powder, titanium carbide powder, vanadium carbide powder of various particle sizes, and provide high-quality raw materials for the production of powder metallurgy products.
Semiconductor industry: Silicon carbide, as an important wide bandgap semiconductor material, is widely used in the manufacture of semiconductor devices. Silicon carbide sintering furnaces can be used for the growth and sintering of silicon carbide crystals, and the preparation of high-quality silicon carbide substrate materials for the production of power devices, optoelectronic devices, etc.
The high efficiency and flexibility of silicon carbide reaction sintering furnaces make them an important tool for the production of high-performance ceramic materials.
English
简体中文
Русский язык
Français
日本語
한국어
Português
Español
Position:
E-mail:
Tell:
Whatapp:
Address:Room 1505, Building 9, No. 26 Dongqing Street, Zhengzhou High-tech Industrial Development Zone
Website navigation
