Vacuum brazing furnace for PCD PCBN tools diamond metal

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Products Description

Vacuum brazing furnace main meatures:

The furnace body is designed in strict accordance with the international vacuum standards. The opening, closing, and locking of the furnace door are simple, flexible, safe, and reliable. The furnace shell is round and has a double-layer water-cooled jacket structure (the outer cylinder is made of high-quality carbon steel, and the inner barrel is made of 304 stainless steel), and the pipe is made of stainless steel or high-quality carbon steel. The system has undergone strict air pressure and vacuum tests before leaving the factory to ensure that the equipment maintains a pressure rise rate of better than 1Pa/h during long-term use.

All structural parts in the vacuum chamber use metal elements and insulating ceramics and undergo strict ultra-high vacuum polishing, degreasing, and degassing treatments to ensure a clean vacuum environment. It adopts standard configuration PLC, vacuum data recorder, etc., to realize the intelligence, manual and automation of the equipment, and to complete the corresponding experiment and production requirements in strict accordance with the established process to achieve data rigor and objectivity.

The equipment abandons the combination of diffusion pump and mechanical pump of the traditional vacuum furnace and adopts the combination of molecular pump and mechanical pump, which is clean and oil-free and will not return oil from the diffusion pump, ensuring the cleanliness of the vacuum chamber and the processing materials. There is no need for the preheating link of the diffusion pump, the start-up time is fast, the vacuum acquisition time is short, and the production efficiency is greatly improved.

Vacuum brazing furnace technical details:

Furnace type	horizontal
Control method	PLC + human-machine interface
Pumping unit	molecular pump + mechanical pump
Power	3 phase 380/220V 50Hz
Total power	60 KW
Material used	Furnace body and flange: 304L material
	Heater: Molybdenum lanthanum alloy
	Heat shield: Molybdenum lanthanum alloy and stainless steel
Heating zone	900*730 (L×ø) mm
Work area size	600*400*400 (L×W×H) mm
Working temperature	≤1200 ℃
Limit temperature	≤1300 ℃
Temperature uniformity	±5℃ (900℃, measured after 30 minutes of heat preservation)
Temperature control	±1 ℃
Temperature measurement	N-Type Thermocouple
Ultimate vacuum	6.67×10-4 Pa (empty furnace, cold state, purified)
Working vacuum	6.67×10-3 Pa (empty furnace, 900℃, heat preservation 1h)
System pumping speed	Within 20min after opening the main pumping valve (1atm to 1×10-3 Pa)
Heating rate	≤20℃/min ℃/min

Vacuum brazing furnace structure:

 

Vacuum brazing furnace application: