Equipment Introduction

The vacuum molybdenum wire gas quenching furnace is a composite device based on a vacuum molybdenum wire furnace with an added high-pressure gas rapid cooling system. Its core operating principle: under vacuum, the workpiece is heated to the required temperature, held for a certain time, then high-pressure inert gas (e.g., N₂, Ar) is introduced into the chamber and a high-power fan drives the gas into high-speed circulation, rapidly cooling the workpiece. This rapid cooling capability allows the material to obtain martensitic and other quenched structures, significantly increasing hardness and strength.

Maximum Power

42 KW (Furnace 39 + Mechanical pump 2.2 + Molecular pump 0.5)

Maximum Heating Temperature

1500℃

Effective Heating Zone

300 × 200 × 200 mm

Insulation Method

Molybdenum and stainless steel radiation shields

Remote System (Optional)

1. Control via WeChat mini-program on mobile phone.
2. Operate the equipment remotely.
3. View equipment operating status in real time.
4. View temperature data and generate reports or temperature curves.
5. View alarm information.

Temperature Control Mode

Equipped with Yudian program temperature controller (standard).
1. 30-segment program control with intelligent PID adjustment.
2. Over-temperature protection and broken thermocouple protection – when over-temperature or thermocouple break occurs, the furnace heating circuit is automatically cut off (when furnace temperature exceeds 1500℃ or thermocouple burns out, the AC relay on the main circuit disconnects, main circuit is cut off, ON lamp goes out, OFF lamp lights up – effectively protecting the furnace).
3. Equipped with RS485 communication interface (standard when software is purchased).
4. Power-off protection: after power failure and restart, the program starts from the furnace temperature at the time of power failure, not from the initial temperature.
5. The instrument has an auto-tuning function.
(Upgrading to imported instruments requires additional cost)

 FP93 from Shinko (Japan)   Eurotherm                 touch-screen controller

Chamber

The chamber uses molybdenum and stainless steel radiation shields. Molybdenum sheets are used as heating elements.
Effective heating zone: Dia. 300 × 200 × 200 mm.
The chamber is free of impurities and does not contaminate materials.

Gas Flow Direction

Chamber Vacuum Degree (Diffusion Pump Unit – Option 2)

< 5×10⁻³ Pa

Chamber Gas Filling Pressure

< 0.05 MPa

Pressure Rise Rate

<4 Pa/hour

Broken Thermocouple Protection & Indication

Yes

Over-temperature Protection

Yes

Over-current Protection

Yes

Under-voltage Protection (Water Pressure)

Yes

Control Accuracy

±1℃ (above 600℃)

Temperature Measurement Method

Type S thermocouple

Maximum Heating Rate

<20℃/min

Vacuum Chamber Water Cooling

Yes

Chiller (Optional)

10 HP

Unit Input Voltage

380V / 220V

Bellows

KF40×1000

Vacuum Gate Valve

KF40

Molecular Pump (Option 1)

Model

FF-400

Input Voltage

220V

Inlet Flange

DN320

Pumping Speed (for air)

3500 L/s

Ultimate Pressure (Molecular Pump)

6×10⁻⁷ Pa

Cooling Method

Water cooling

Cooling Water Pressure

0.1–0.2 MPa

Cooling Water Temperature

<25℃

Ambient Temperature

0–40℃

Recommended Starting Pressure

10 Pa

Fore Vacuum Pump DRV275

Power

7.5 KW

Voltage

380V

Speed

1440 rpm

Inlet Port Diameter

VG80

Pumping Speed (fore pump)

70 L/s

Ultimate Pressure

4×10⁻² Pa

Diffusion Pump TK300 (Option 2)

Voltage

220V

Power

2000 W

Inlet Port

DN300

Outlet Port

DN40

Oil Charge

1.3 L

Pumping Speed (N₂)

4000 L/s

Compound Vacuum Gauge

Model

ZDF

Power Supply

220V, 55W

Control Accuracy

±1%

Measuring Range

10⁻⁵ Pa ～ 10⁵ Pa

Chiller

Model

10A

Total Power

13 KW

Cooling Capacity

28.6 KW

Power Supply

380V/50Hz

Tank Capacity

160 L

Head

40 m

Pump Flow

12 m³/h

Dimensions

1335 × 780 × 1640 mm

Weight

450 kg