Product Details

Product Description

CE ,ISO 9001 vacuum heat treatment furnace , quenching ,Annealing ,Hardening ,Tempering ,Aging,Case hardening

Vacuum Heat Treatment Tempering Sintering Furnace

Vacuum Technology is the Basis for Process Innovation in Heat Treatment.

Heat Treatment is the process in which metallic/steel parts are exposed completely or partially to time-temperature sequences in order to change the mechanical and/or corrosion properties. There are numerous application areas, e.g.:

• Annealing • Hardening • Tempering • Aging • Case hardening

To achieve a higher strength of the material, better wear resistance or to improve the corrosion behaviour of the components.All of these processes need a temperature up to 1.000 °C and higher as well as especially developed furnaces to achieve such ranges.

Vacuum Annealing
Annealing is one type of heat treatment comprising heating up to a specific temperature, holding and cooling down slowly. Such processes are generally used to obtain a softer structure of the part and to optimise material structure for subsequent working steps (machining, forming). Parameters depend on the material and the desired structure.
Vacuum Hardening and Tempering
Hardening is a typical heat treatment process combining heating to specific temperatures (mostly above 900 °C) and direct fast cooling or quenching of the part. The requirements are selected to change the materials’ structure partially or completely into martensite. The part undergoes tempering treatment after hardening in order to obtain high ductility and toughness.
Vacuum Case Hardening
One of the important processes is the case hardening or carburizing process. Parts are heated up to 900 °C - 1.000 °C and by adding specific gases (hydrocarbons) into the atmosphere of the furnace the part’s surface is enriched by absorbing carbon. Following this treatment the part is quenched in order to achieve the required properties. This results in higher resistance to stresses and friction on the component’s surface. The core of the part remains somewhat softer and more ductile which allows the part to carry high stresses through its entire life. For example, all gear parts for transmissions are treated this way.

Name	Parameter
vacuum heat treatment furnace (hardening, annealing, tempering, quenching)	steel heat treatment
Model	Horizontal / Vertical
Ultimate vacuum	Custom made
Pressure rising rate	0.5pa/h ( adjustable )
Max temperature	Custom made
Temperature uniformity	±3℃ / ±5℃
Heating power	Custom made
Temperature control method	Intelligent programmable temp controller
Control method	PLC auto/manual interlock protection
Max gas charging pressure (absolute pressure)	Custom made

Specification

CE ,ISO 9001 vacuum heat treatment furnace , quenching ,Annealing ,Hardening ,Tempering ,Aging,Case hardening

Vacuum Heat Treatment Tempering Sintering Furnace

Main technical data of vacuum heat treatment furnace
Models	Effective working dimension (mm)	Max temperature (C)	Ultimate pressure (pa)	Pressure rising rate (pa/h)	Temperature uniformity (C)	Loading capacity (kg)
RVSQ-224	250x250x400	500-1300	4x10^-1	0.5	±5	50
RVSQ-335	300x300x500	500-1300	4x10^-1	0.5	±5	100
RVSQ-446	400x450x600	500-1300	4x10^-1	0.5	±5	200
RVSQ-558	500x500x800	500-1300	4x10^-1	0.5	±5	300
RVSQ-669	600x600x900	500-1300	4x10^-1	0.5	±5	500
RVSQ-7710	700x700x1000	500-1300	4x10^-1	0.5	±5	800
RVSQ-8812	800x800x1200	500-1300	4x10^-1	0.5	±5	1200
RVSQ-vertical 70x11	Φ700x1100	500-1300	4x10^-1	0.5	±5	800
RVSQ- x	custom made	custom made	custom made	custom made	custom made	custom made

Application

Application fields: Die steel, stainless steel, gear, high speed steel, tool steel and so on.

Advantages of Vacuum Heat Treatment

Vacuum as "Protective Atmosphere"

• No toxic protective gases containing CO

• No health hazards in the work shop

• No danger of explosion or open flames

• No furnace conditioning

• Use of inert gases (nitrogen or helium)

• No CO2 emission

Vacuum Carburizing

• Use of various processes

• Use of different gases

• Shorter carburizing cycles than in conventional technology

• Higher carburizing temperatures offer potential to further reduce process time

• Small gas consumption l instead of m3

Gas Quenching Instead of Oil Quenching

• Clean, dry parts after hardening

• No washing machine - no disposal of washing water

• No maintenance of washing equipment

• No complicated washing water chemistry

• Save space

• Cost benefits

• Quenching intensity is controlled via gas pressure or gas velocity

• No vapor blankets during quenching

• Homogeneous quenching

• Reduced distortion

Surface Influences

• Free of surface oxidation

• No surface decarburization

• Bright, metallic, shiny parts

Plant Operation / Installation / Maintenance

• No idling over the weekend

• No continuous gas consumption

• Short heat-up times

• Fast access to installed modules

• No fire detection or sprinkler system

• No open flames

• No flammable gas mixtures

• Cold-Wall Technology

• No gas emission

• Minimum energy loss

• No heat radiation to atmosphere

Auxiliary Equipment of Protective Gas Plants are no longer required, like:

• Fire safety equipment

• Sprinkler system

• Exhausts

• CO2 extinguisher for the oil bath

• Measuring CO concentration in the shop

• Smoke exhaust in the roof (automatic opening and closing)

• Oil-proof floor or tank

• Methanol storage

Packaging & Shipping

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