Product Description
1. Introduction
The HRH-322 high vacuum brazing furnace is mainly used for brazing stainless steel products, diamond tool brazing, high-pressure gas quenching of stainless steel, and vacuum annealing of high-temperature alloy magnetic materials. It can also be used for vacuum sintering, solid solution, failure, annealing, tempering above 620 ºC in low-temperature powder metallurgy, copper failure, etc.
The HRH-32 high vacuum brazing furnace consists of a main unit, vacuum system, water cooling system, air cooling system, pneumatic system, electronic control system, and external transport vehicle.
2. Technical specifications and parameters
| Effective workspace size (mm) |
300 × 200 × 200 (L×W× H) |
| Maximum temperature (ºC) |
1320 |
| Loading capacity (Kg) |
20 |
| Uniformity of furnace temperature (± ºC) |
5 ºC (above 650 ºC, clean empty furnace) |
| Heating power (kW) |
50 |
| Temperature control accuracy |
± 1 ºC |
| Ultimate vacuum degree (Pa) |
5.0×10-3 |
| Cooling rate (min) |
5 (cooling from 1200 ºC to 650 ºC in an empty furnace) |
| Pressure rise rate (Pa/h) 0.6 |
0.6 |
| Air cooling pressure (bar) 2 bar (shorten cooling time) |
2 bar (shorten cooling time) |
| Cooling water consumption of radiator (M3/h) |
30 (cooling) |
3. Standard structure
The main unit of the vacuum furnace is a horizontal single chamber structure, consisting of the furnace body, furnace cover, heating chamber, and forced circulation gas cooling device.
3.1.1 The furnace body and furnace cover are double wall water-cooled structures, and the inner and outer walls are made of carbon steel. There is a gap between the two layers, with cooling water flowing inside. The front end is connected to the furnace flange, and the rear end is connected to the head. There is a flange interface at the rear end of the furnace body that is connected to the air-cooled motor. A bracket for the furnace body is designed at the lower part of the furnace body to facilitate the placement of the furnace body. The furnace body is equipped with the following openings:
*Take some time to use an opening
*Electrode opening
*Thermocouple opening
*Inflatable opening
*Pressure measurement opening
*Safety valve installation opening
*Other auxiliary openings
*Specially designed drain hole for the front furnace door,
*Specially designed drain hole at the bottom of the furnace body
The sealing design between the furnace body and the furnace door is a bi-directional seal with a locking ring. The sealing ring is installed in the groove of the furnace door flange to ensure the sealing of the vacuum furnace under negative pressure and high-pressure gas cooling.
3.1.3 The heating chamber is composed of insulation layer, heating element zone one heating, material table, and other parts.
The insulation layer is a circular structure composed of three layers of graphite felt and a high-temperature setting composite hard felt of 20mm. Our company uses the latest composite hard felt with molybdenum screws on the heating chamber frame, and the composite hard felt and graphite felt are fixed on the heating chamber frame. The advantages of composite hard felt are not afraid of wind deformation, small durability, and the heating chamber adopts a 360 degree circular uniform cooling method. Both front and rear are equipped with insulation layers, and the structure of the insulation layers is the same as that of the insulation layers.
The heating element adopts graphite tubes, which are evenly distributed along the wall of the heating chamber, ensuring long-term use without deformation, long service life, and uniform heating.
*The furnace bed is made of graphite and is divided into two parallel sections (to prevent deformation of the material tray and maintain the deformation of the workpiece, thus improving the service life of the material tray). A gasket made of AL2O3 is installed on the furnace bed to isolate the material basket from the furnace bed.
3.1.4 A rapid cooling system consisting of a high flow rate blower and a heat exchanger is installed at the rear end of the vacuum furnace
Inflating system: It consists of a gas storage tank (3 cubic meters and 10 kilograms provided by the customer), a large diameter dedicated pneumatic shut-off valve, a fine adjustment valve, a manual switch, an electromagnetic valve, etc., which can achieve rapid gas replenishment and meet the requirements of quenching process. The system can also adjust and control the vacuum degree inside the furnace.
Company Profile
Liaoning Jinrong Machinery Import and Export Co., Ltd. is a large group company with its own import and export rights, integrating industry and trade. The registered capital of the company is 180 million RMB. The company's subsidiaries include Metallurgical Equipment Manufacturing Company, Electric Furnace Equipment Manufacturing Company, Electrical Equipment Manufacturing Branch, Mechanical Processing Branch, and Metallurgical Design and Research Institute
Our company can undertake turnkey projects for the design, manufacturing, installation, commissioning, and trial production of various metallurgical equipment. Our company can provide various metallurgical equipment and machinery such as mining machinery, ironmaking blast furnaces, sintering machines, coking coke ovens, converters, electric arc furnaces, ladle refining furnaces, continuous casting equipment, steel rolling heating furnaces, steel rolling production lines, steel structure factories, and cranes. Various types of mechanical equipment can also be provided
Our company is a direct agent for large steel mills such as Ansteel, Bengang, and Fushang. We have a complete range of steel products, including pipes, plates, profiles, and wires, all of which are available in stock. If there are special specifications, material requirements, etc., we can organize and arrange ordering and selection, schedule production and rolling to ensure supply.
Our company has a history of 30 years and has established friendly contacts with over 120 countries and regions, as well as engaged in various aspects of cooperation. We welcome customers from various countries to visit and inspect our company.
Address: :1-51-901-3041, Floor 9, Jiangsu Building, Qianyuan Emerging Market, Tiexi District, Anshan City, Liaoning Province
| Total Number of Staffs |
585 |
| Total Number of Managers |
40 |
| Total Number of Technical Staffs |
160 |
| Total Number of QC Staffs |
15 |
| Total Number of workers |
310 |
| Total Number of other staffs |
60 |
| Contact person |
Mr. Su |
Position |
President |
| Tel |
0086-412-8554538 |
Mobile |
0086-13700125807 |
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