2000 ℃ vacuum hot pressing sintering furnace (two-way pressurization)

      一、Product use

Rapid and high-grade hot pressing sintering of porcelain materials, composite ceramic materials, nanophase materials, gradient functional materials, mesoporous nano-thermoelectric materials, high melting point materials and refractory materials. Widely used in colleges and universities, scientific research institutes, industrial and mining enterprises experimental and production trial furnace.

　　二、Product structure

1. The use of * quality carbon steel welded double-layer water circulation furnace body, the upper part of the furnace body is a double-layer water circulation flange structure furnace cover, the center of the furnace cover is provided with a water circulation stainless steel indenter, the upper part of the girl is the beam of the press, the two sides of the furnace body are the support frame of the press beam, the lower part of the furnace body is the pressure and base, the front center of the furnace body is horizontally provided with the furnace door, and the rear center of the furnace body is connected to the vacuum unit with a flange structure.

2. The vacuum hot pressing sintering furnace is mainly composed of furnace body, heating body, thermocouple, circulating water cooling device, indenter head, pressure system and bracket, vacuum unit, temperature controller, connecting pipe, fire door and fire clamp.

3. The furnace body is vertical structure, and the furnace body size is Ф800 (width) × 900 (height).

4. In and out of the abrasive: take out the abrasives and products through the lifting furnace body

　　三、Product Features

1. The traditional small dry-type transformer is used for voltage regulation, with small input power and small heating power, which not only saves energy, small labor intensity, but also has a compact structure and a simple structure and beautiful furnace door.

2. The thermocouple is used for temperature measurement, which has the technical characteristics of contact measurement furnace temperature, wide measurement range of 50-2000 °C, and high measurement accuracy.

　　四、Main technical parameters of heating part

　　1、sintering temperature：2000℃

　　2、Temperature measurement range：室温-2000℃

　　3、Long-term sintering temperature：2000℃

　　4、Furnace studio size：Ф200×250mm

　　5、temperature uniformity：±6℃

　　6、temperature stability：±1℃

　　7、Heating rate：±1-15℃/min

　　8、Heating element: composite ceramic heating element

　　9、Furnace material: high hardness, high density and high strength graphite material is used as the furnace lining, and the thermal insulation material adopts graphite felt and gradient ceramic fiber material.

　　10、Temperature measuring element: thermocouple

　　11、Temperature control performance: thyristor control, transformer voltage regulation, programmable 50 segments, PID parameter self-tuning function, manual/automatic interference-free switching function, overtemperature alarm function, with temperature compensation and temperature correction function. The temperature control instrument has a password setting function, and the parameter setting password control.

　　12、Display window: LCD screen display and control, paperless recording of historical data and temperature curve, pressure, vacuum, temperature are displayed on the main interface, one-button vacuum, gas washing, heating.

　　13、display accuracy：±1℃

　　14、Power supply voltage：380V

　　15、Input power：12KW，Heating power：10KW

　　16、Furnace body movement mode: the furnace body is raised and lowered by moving up and down by the piston, and after the furnace body is raised, the abrasives and samples are taken out from the lower part of the furnace body.

　　17、Furnace size：Ф700×900(high)mm。

　　18、Furnace weight：about250Kg

　　五、Main technical parameters of hot pressing and testing machine

　　1、Pressure method: set the upper indenter and the lower indenter to press in both directions

　　2、Pressure: 100KN each in two directions

　　3、Pressure range: 1-FS (full range without division)

　　4、Pressure control accuracy: ± 0.5% better than the indicated value

　　5、Measurement resolution: 0.2N (1/500000 of test force)

　　6、Piston displacement speed：0-170mm/min

　　7、displacement resolution：0.02mm

　　8、Displacement control accuracy：±0.5%

　　9、Head stroke：Two-way each 100mm

　　10、Head diameter：Ф80mm

　　11、The pressure control system has automatic pressurization, automatic pressure regulation, automatic pressure holding, and has a one-button operation mode of vacuuming, automatic gas washing, automatic repeated operation and automatic heating, and has the technical characteristics of high pressure control accuracy, small equipment power, reasonable design, compact structure and convenient operation.

　　12、Support column spacing: 800mm

　　六、Vacuum performance

1. Vacuum unit: selection pump + roots pump + oil diffusion pump vacuum unit.

2.  Ultimate vacuum degree of vacuum unit: 6.67×10-3Pa,

3.  Working vacuum: 6.67×10-2Pa,

4.  Pressure rise rate: 3Pa/min

5.  Vacuum measurement: digital composite vacuum gauge

   6. Vacuum control: vacuum automatic control.

   7.Vacuum connecting tube: vacuum bellows

   8.Inflation pressure: 0.12MPa9. Inflated gas: nitrogen and inert gas

　　Product parameters