Vacuum Hydrogen Furnace

Application
It is used for heat treatment of materials like tool steel, die steel, high-speed steel, ultra-strength steel, magnetic material, stainless steel, non-ferrous metal, and other materials in the state of hydrogen atmosphere.

Technical Features
1. Horizontal, single chamber, loading horizontally. The way of opening door is optional according to customer’s requirement.
1.Excellent temperature uniformity realized by optimized furnace hearth.
2.All metal hot zone, good temperature uniformity.
3.Equipment can be a variety of ways to work: Positive pressure hydrogen; Negative pressure dynamic equilibrium hydrogen; Negative pressure pulse hydrogen.

Configuration Options
1. Furnace door type: on-line; off-line; vertical up and down; rotating
1.Furnace hearth: graphite heating elements and graphite felt heat insulation; Molybdenum heating element and metal heat insulation
2.Vacuum pump unit and vacuum gauge: abroad brand; high-quality Chinese brand
3.Vacuum degree: high vacuum; medium vacuum
4.Hydrogen discharge type: positive pressure discharge; negative pressure extract
6. PLC: OMRON; Siemens; Mitsubishi
7. Temperature controller: SHIMADEN; EUROTHERM; Honeywell
8. Thermocouple: type K; type N; type S
9. Recorder: paperless recorder; paper recorder
10. HMI: simulation screen; touchscreen with industrial computer
11. Electric components: high-quality Chinese brand; Schneider; Siemens
12.Mass flowmeter: Chinese brand; abroad brand

Main Specifications

Parameter\Model	HVA-335SH	HVA-446SH	HVA-557SH	HVA-669SH	HVA-7711SH	HVA-8812SH	HVA-9915SH
Effective hot zone size W×H×L (mm)	300 × 300 × 500	400 × 400 × 600	500 × 500 × 700	600 × 600 × 900	700 × 700 × 1100	800 × 800 × 1200	900 × 900 × 1500
Loading capacity (kg)	75	250	400	600	1000	1200	1500
Heating power (kW)	48	75	90	150	270	360	480
Max. temperature (°C)	1350/1700/2300	1350/1700/2300	1350/1700/2300	1350/1700/2300	1350/1700/2300	1350/1700/2300	1350/1700/2300
Temperature uniformity (°C)	±5	±5	±5	±5	±5	±5	±5
Vacuum degree (Pa)	4 × 10-1	4 × 10-1	4 × 10-1	4 × 10-1	4 × 10-1	4 × 10-1	4 × 10-1
	4 × 10-3/6 × 10-4	4 × 10-3/6 × 10-4	4 × 10-3/6 × 10-4	4 × 10-3/6 × 10-4	4 × 10-3/6 × 10-4	4 × 10-3/6 × 10-4	4 × 10-3/6 × 10-4
Pressure increasing rate (Pa/h)	≤0.26	≤0.26	≤0.26	≤0.26	≤0.26	≤0.26	≤0.26
	≤0.65	≤0.65	≤0.65	≤0.65	≤0.65	≤0.65	≤0.65
Gas cooling pressure (bar)	2	2	2	2	2	2	2