The classification of vacuum sintering furnace and the specific use for details

The classification of vacuum sintering furnace and the specific use for details

Vacuum sintering furnace is mainly used for metal powder products, metal injection forming products, hard alloy, ceramic, sintered ndfeb, stainless steel, non-woven fabrics, etc. High temperature of vacuum sintering furnace and vacuum heat treatment furnace structure is basically the same, just according to the sintering process make the appropriate changes.
Vacuum sintering furnace is divided into double vacuum sintering furnace and single loop outdoor pressurized air cooled vacuum sintering furnace Double the same sintering furnace, vacuum sintering furnace has two public a set of vacuum system and electric control system; In operation, two furnace for heating and cooling, mutual used interchangeably. No.1 has one time in the same furnace, degreasing, the function of the sintering and sintering. Degreasing system including external pipeline, vacuum valve, condenser, collector and mechanical pump device. Single cycle outdoor pressurized air cooled sintering furnace need high vacuum pumping speed of vacuum unit, to meet the requirements of ndfeb sintering process. This furnace structure and single loop outdoor pressure gas quenching vacuum furnace are the same.

Vacuum sintering cemented carbide is the main production process

Vacuum sintering cemented carbide is the main production process

Vacuum dewaxing sintering furnace can be a one-time degumming, sintering, cooling and molding charge of a full set of technical process. In the traditional drying sintering furnace structure added a graphite on the basis of the tank, and low voltage carrier gas dewaxing process is adopted to be collected wax device isolated after bonding (molding) agent, residual gas in a variety of ways.
With the above process, forming agent is not in the oven and it touches a cold surface accumulated inside the furnace, also won't pollution insulation and heating element. Vacuum sintering cemented carbide is the main production process, the sintering process for vacuum dewaxing sintering furnace temperature must be integrated according to the corresponding to the sintering products in the process of sintering temperature curve to carry on the control, the tracking error and overshoot amount have strict index requirements.

Vacuum pressure sintering furnace

Vacuum pressure sintering furnace

In vacuum pressure sintering furnace this equipment, sintering material under high temperature is also subject to mechanical stress and the effect of vacuum, can be used in the sintering density after casting products. General powder material filling in the graphite mold, mechanical pressure by 700-1500 mn/m3, and heated to 2500 ℃ in the vacuum. Mold by direct current heating, indirect heating.
Vacuum pressure sintering furnace is mainly used for sintering is the density of the material with high temperature gas reactions billet, such as oxide, carbide and boride gas after sintering material can reach very high density, general density is greater than the theoretical value of 95%, and with high purity. Graphite resistor and graphite mould in the vacuum operation of weight loss is minimal. Vacuum hot pressing sintering is at the same time in the compaction process and utilization of high pressure, temperature and time, and many other parameters to control the quality of the sintered body.

Vacuum sintering furnace is how to work?

Vacuum sintering furnace is how to work?

 

Vacuum sintering furnace is in a vacuum environment to be heated objects in protective sintering furnace, its heating mode is more, such as resistance heating, induction heating, microwave heating, etc. Vacuum induction furnace is heated objects to make use of induction heating protective sintering furnace, can be divided into the power frequency, medium frequency, high-frequency, such as type, can be ascribed to a subclass of vacuum sintering furnace.
Vacuum sintering furnace can meet the requirements of rapid heating process; Intelligent temperature control switches use imported more sections program c the instrument control, c the stability of the control switches, repeatability is very reliable; Frequency conversion stepless speed regulation, stainless steel mesh belt transmission, the appearance of the new design concept, to ensure that the product smooth conveying.
Vacuum sintering furnace by using the principle of intermediate frequency induction heating, the high temperature of tungsten crucible in the winding, by heat conduction to work on, suitable for scientific research, military units for hard metal such as tungsten, molybdenum and its alloy powder sintering molding.

The design of vacuum sintering furnace

The design of vacuum sintering furnace

Vacuum sintering furnace with perfect performance design, integrating multiple patents at a suit, security, reliability and practicability of the best results. The design of vacuum sintering furnace advantages are:
1, using vacuum forming technology, electric stove wire inlay on the inner surface of the ceramic plate, a molding chamber of a stove or furnace tank, to prevent pollution by volatile matter.
2, the four sides of electric stove wire installed in the chamber of a stove or furnace, special heat insulation design, furnace can be replaced.
3, double shell, air circulation and heat insulation, the surface temperature is low.
4, fast loading quickly open the oven door design, loading convenient, structure of double ended, the outer pressure vessel welding technology.
5, with the door automatic power-off protection design, has the ultra high temperature alarm function, with functions of thermocouple damaged power outages, with functions of built-in password control parameters.
6, with no paper record history data and curve of temperature, the temperature deviation error correction function, can manage multiple devices and remote fault diagnosis analysis.
7, multiple security protection design, safety performance is good, long service life.

The vertical design of the control system of high temperature and vacuum sintering furnace

The vertical design of the control system of high temperature and vacuum sintering furnace

Vertical high temperature vacuum sintering furnace system structure and function. Based on the system requirements and design of the operating process based on distributed, modular DCS control solutions. Detailed discusses the hardware configuration and software design of the control system, realize the real time monitoring of production process equipment operation condition and was accused of amount of online real-time display. This control scheme has simple hardware, the configuration of flexible characteristics, applicable to small and medium-sized control system.
With the continuous development of science and technology, industry, national defense, aerospace and other fields in China have made great progress, the vacuum furnace equipment manufacturing equipment level, production process, control technology also has the very big enhancement. Prompted materials along with the continuous improvement of science and technology in the field of development, in the aviation, aerospace, military industry, energy and chemical industry in areas such as some special material, the new material has been widely used. The vacuum heat treatment technology in the production of these special materials, new materials manufacturing process plays a more and more important role. Vertical high temperature vacuum sintering furnace is mainly suitable for cemented carbide, ceramics, magnetic materials, porous materials of vacuum sintering, can meet all kinds of high temperature oxidation resistant coating the surface of the parts sintering requirements, is developed for a domestic space military enterprise space equipment specialized equipment, mainly by the vacuum system, furnace, bottom sliding on the oven door and locking mechanism, closed water system, heating power systems and electrical automatic control system, etc.

The main characteristics of the vacuum furnace

The main characteristics of the vacuum furnace

Is a vacuum induction melting equipment, can be through vacuum conditions using the intermediate frequency induction heating principle of molten metal and sintering power. Its application in the field of metal materials, such as nickel, special steel, precision alloy, copper alloy, metal dysprosium, ndfeb, active metal, high temperature alloy, special materials, magnetic materials, etc. These metal materials can be melt, casting in vacuum or protective atmosphere sintering test.
Features:
1. Temperature as high as 3000 degrees Celsius;
2. Far infrared thermometer.
3 water cooling;
4. The pid control;
The highest temperature: 3000 ° C
High volume: 0.01 m3, 0.01 m3 and 0.02 m3, 0.05 m3, 0.1 cubic meters, 0.15 cubic meters, 0,0.3 m3
Working atmosphere: vacuum furnace, hydrogen, nitrogen, the inert gas
Temperature uniformity: plus or minus 10 ° C or less
The measurement of temperature: 800 ~ 3500 ° C temperature or 0 ~ 3500 ° C infrared optical fiber temperature measurement range. Accuracy: 0.2 ~ 0.75%.
Temperature control: process control and manual control; Control accuracy: + / - 1 ° C
Limit GongReLv: 200 ° C/min (hot blast stove, according to the size and the high temperature furnace configuration).

The classification of vacuum sintering furnace and the specific use for details

The classification of vacuum sintering furnace and the specific use for details

Vacuum sintering furnace is mainly used for metal powder products, metal injection forming products, hard alloy, ceramic, sintered ndfeb, stainless steel, non-woven fabrics, etc. High temperature of vacuum sintering furnace and vacuum heat treatment furnace structure is basically the same, just according to the sintering process make the appropriate changes.
Vacuum sintering furnace is divided into double vacuum sintering furnace and single loop outdoor pressurized air cooled vacuum sintering furnace Double the same sintering furnace, vacuum sintering furnace has two public a set of vacuum system and electric control system; In operation, two furnace for heating and cooling, mutual used interchangeably. No.1 has one time in the same furnace, degreasing, the function of the sintering and sintering. Degreasing system including external pipeline, vacuum valve, condenser, collector and mechanical pump device. Single cycle outdoor pressurized air cooled sintering furnace need high vacuum pumping speed of vacuum unit, to meet the requirements of ndfeb sintering process. This furnace structure and single loop outdoor pressure gas quenching vacuum furnace are the same.

Vacuum sintering cemented carbide is the main production process

Vacuum sintering cemented carbide is the main production process

Vacuum dewaxing sintering furnace can be a one-time degumming, sintering, cooling and molding charge of a full set of technical process. In the traditional drying sintering furnace structure added a graphite on the basis of the tank, and low voltage carrier gas dewaxing process is adopted to be collected wax device isolated after bonding (molding) agent, residual gas in a variety of ways.
With the above process, forming agent is not in the oven and it touches a cold surface accumulated inside the furnace, also won't pollution insulation and heating element. Vacuum sintering cemented carbide is the main production process, the sintering process for vacuum dewaxing sintering furnace temperature must be integrated according to the corresponding to the sintering products in the process of sintering temperature curve to carry on the control, the tracking error and overshoot amount have strict index requirements.