Main advantages of graphite heater
2017-4-24 16:47:17 click：
The main advantages of graphite heaters are: lightweight design, rich in shape, durable and easy to maintain.
Graphite heating degassing treatment
The synthesis of diamond, graphite heating degassing treatment at 1100 DEG C, the conversion rate can be improved and the grain size of diamond (except V598), therefore, in addition to gas after treatment conversion increased to different degrees, and no obvious regularity, especially hydroxylates decomposition of hydrogen, the yield of zero Jin Gang stone. The effect of gas graphite into diamond mechanism is not clear, a view that the interface between graphite and metal catalyst surface to form a layer of plating layer; another view reduces the solubility of gas in graphite in metal.
The thermal field is the core part of the vacuum resistance furnace, which directly affects the performance and operating cost of the furnace. The design of the thermal field is varied, and the specific choice of which is based on the specific analysis of the process. Most of the vacuum resistance furnace thermal field includes four main components: the heater and the connecting parts, heat insulation parts (or screen), the thermal field and the workpiece bearing support member.
From the shape of the division, the thermal field can be divided into square and circular, circular thermal field in the field of vacuum furnace occupies a higher proportion. In order to facilitate the installation and removal of the furnace, all of the thermal fields have been constructed as modules.
Heater
Most of the high temperature vacuum furnaces are heated by resistance. The heater can be metal or graphite. According to the needs, the heater can be designed into various forms. The choice of heater material depends on the working temperature. For low operating temperatures, such as the vacuum tempering furnace, the price of nickel chromium alloy can be competent. Molybdenum and graphite are the most popular materials for high temperature applications such as quenching furnaces and brazing furnaces.
Over the years, molybdenum almost completely dedicated to the vacuum heat treatment furnace, but also there is a common misconception is that emissions from the graphite material in the material and some materials from a chemical reaction and pollution furnace workpiece. Early graphite heaters were limited to simple shapes, and the connections and electrical properties between the graphite components were not stable. With the improvement of the properties of graphite materials and processing technology, more and more graphite heaters have been used in heat treatment and brazing furnaces.
Graphite heating degassing treatment
The synthesis of diamond, graphite heating degassing treatment at 1100 DEG C, the conversion rate can be improved and the grain size of diamond (except V598), therefore, in addition to gas after treatment conversion increased to different degrees, and no obvious regularity, especially hydroxylates decomposition of hydrogen, the yield of zero Jin Gang stone. The effect of gas graphite into diamond mechanism is not clear, a view that the interface between graphite and metal catalyst surface to form a layer of plating layer; another view reduces the solubility of gas in graphite in metal.
The thermal field is the core part of the vacuum resistance furnace, which directly affects the performance and operating cost of the furnace. The design of the thermal field is varied, and the specific choice of which is based on the specific analysis of the process. Most of the vacuum resistance furnace thermal field includes four main components: the heater and the connecting parts, heat insulation parts (or screen), the thermal field and the workpiece bearing support member.
From the shape of the division, the thermal field can be divided into square and circular, circular thermal field in the field of vacuum furnace occupies a higher proportion. In order to facilitate the installation and removal of the furnace, all of the thermal fields have been constructed as modules.
Heater
Most of the high temperature vacuum furnaces are heated by resistance. The heater can be metal or graphite. According to the needs, the heater can be designed into various forms. The choice of heater material depends on the working temperature. For low operating temperatures, such as the vacuum tempering furnace, the price of nickel chromium alloy can be competent. Molybdenum and graphite are the most popular materials for high temperature applications such as quenching furnaces and brazing furnaces.
Over the years, molybdenum almost completely dedicated to the vacuum heat treatment furnace, but also there is a common misconception is that emissions from the graphite material in the material and some materials from a chemical reaction and pollution furnace workpiece. Early graphite heaters were limited to simple shapes, and the connections and electrical properties between the graphite components were not stable. With the improvement of the properties of graphite materials and processing technology, more and more graphite heaters have been used in heat treatment and brazing furnaces.
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