Standard for heat treatment quenching oil

Performance characteristics and application range of heat treatment oil:

1. Ordinary quenching oil: strong cooling performance, good oxidation stability, suitable for the quenching of bearing steel, tool die steel, alloy steel and carburizing steel in salt bath furnace or protective atmosphere. The best use temperature is 50 -80 ℃.

2. Quick quenching oil: fast cooling speed, good oxidation stability, medium brightness, suitable for quenching of high cooling speed quenching and tempering, carburizing and other parts and large forgings, large gears and quenching presses. The use temperature is 20 -80 ℃.

3. Fast bright quenching oil: fast cooling speed, good oxidation stability, good brightness, suitable for quenching bearing steel, tool steel and other structural steel under protective atmosphere. The use temperature is 20 -80 ℃.

4. Ultra-speed quenching oil: faster cooling speed, good oxidation stability, suitable for heating quenching, carburizing or carbonitriding quenching of large parts in the automobile, bearing, mining machinery, metallurgical machinery and mold industries, and also suitable for medium Quenching of carbon steel and other types of alloy steel. The operating temperature is 20 -60 ℃.

5. Vacuum quenching oil: low saturated steam pressure, good cooling performance, and good brightness. It is suitable for vacuum quenching of bearing steel, tool steel, large and medium-sized aviation structural steel and other materials. The air in the oil should be removed under vacuum during initial use. The use temperature is 20 -80 ℃.

6. Isothermal graded quenching oil: good cooling performance, small deformation of parts, suitable for quenching of bearing steel, carburized steel bearing inner and outer circles, precision parts, automobile gears, semi-shafts and other workpieces and easily deformable parts. The operating temperature is 120 ℃ for No. 1 and 150 ℃ for No. 2.

7. Tempering oil: high viscosity, high flash point, low volatilization, good thermal oxidation stability, suitable for tempering the workpiece after quenching, the temperature of No. 1 is 150 ℃, and the temperature of No. 2 is 200 ℃.

Heat treatment oil products

It is mainly used for heat treatment oil for rapid cooling in quenching processing. It is used for a long time on-site performance to improve the stability and stability of the oil.

1. Features:

Although it is in a non-oxidizing atmosphere, it can also exert excellent brilliance in a continuous furnace.

Because of the cooling characteristics, the burning depth is increased through the cooling of the vapor film stage, and the cooling energy of the slow convection stage is

Maintain high hardness and minimize deformation.

Reduce costs by extending tool life.

Because of its excellent oxidation stability to open-type oil grains, it minimizes the change in cooling performance caused by increased dirt in the short term.

In use, the viscosity change is minimized to reduce the product quality dispersion caused by the change of cooling energy.

2. Physical and chemical properties:

HSQ-270\New oil management\Properties and appearance (original solution)

-Specific gravity (15/4 ℃)

-Viscosity (40 ℃, mm /s) below 26 \ flash point (℃) \ over 170 \ total acid value (m KOH)

-Moisture (ppm) below 500 \ Cooling characteristics

Characteristic temperature:

800~400( ℃ ){ second}

800 ~ 300( ℃ ){ second}

580 or less

615 and above

4.0 or less

2.8 or less

No regulations

5.5~6.0

3. Cooling performance test results:

4. Usage:

Applicable equipment: continuous furnace, PIT furnace and other open furnace firing and high-frequency wave firing.

Applicable column of processed products

Continuous furnace firing of small or thick bearing steel.

Continuous furnace soaking of low-alloy steel for large-scale products, grease burning in.

PIT furnace firing of large carbon tool steel and alloy tool steel.

The immersion screw is fired in a continuous furnace.

The deep hardness of large fittings used in PIT furnaces increases.

5. How to use:

Because the viscosity of the burned oil will change with the temperature of use, and the oil temperature will also cause changes in the cooling characteristics under the same stirring conditions, so an appropriate temperature is required, and the use temperature range of HSQ-270 is 60 ℃ ~ 80 ℃ is the most suitable.

The oil temperature of 60 ℃ ~ 70 ℃ is more appropriate.

Do not increase the temperature of the burned oil grains above 20 ℃.

6. Matters needing attention:

Please refer to the MSDS (material health and safety information) provided by our company.

7. Product validity period:

The shelf life is half a year from the date of manufacture.

International classification of heat treatment oil

The TC28 subcommittee of the International Organization for Standardization (ISO) proposed in 1993 the classification of ISO/DIS 6743/14 lubricants, industrial lubricants and related products (class L)-Part 14: Group U (heat treatment). my country has proposed the classification standard of SH0564-93 heat treatment oil with reference to the JIS-K2242-80 standard. The following is the international standard classification method:

1. Oil for heat treatment: some kinds of oil are easily washed away by water, because demulsifiers are added to the oil formula. These oils can be called “soluble oils”. The manufacturer can determine this oil according to user requirements. Stainless steel spring

(1) Cold quenching (<80 ℃): A rapid quenching oil, UHA; B ordinary (normal) quenching oil, UHB.

(2) Semi-thermal quenching (30 ℃-130 ℃): A rapid quenching oil, UHC; B ordinary (normal) quenching oil UHD.

(3) Thermal quenching (130 ℃-180 ℃): A rapid quenching oil, UHE; B ordinary (normal) quenching oil, UHF.

(4) High temperature quenching (> 180 ℃): A rapid quenching oil, UHG; B ordinary (normal) quenching oil, UHH.

(5) Vacuum quenching, UHV.

(6) Others, UHK.

2. Heat treatment water:

(1) Surface quenching: A water, UAA; B water-containing liquid for rapid quenching, UAB; C water-containing liquid for slow quenching, UAC.

(2) Overall quenching: A water, UAA; B water-containing liquid for rapid quenching, UAD; C water-containing liquid for slow quenching, UAE;

(3) Others: UAK.

3. Molten salt for processing:

(1) 150 ℃-500 ℃: molten salt (150 ℃-500 ℃), USA;

(2) 500 ℃-700 ℃: molten salt (500 ℃-700 ℃), USB;

(3) Others: USK.

4. Gas for heat treatment: A air, UGA; B neutral gas, UGB; C reducing gas, UGC; D oxidizing gas, UGD.

5. Fluidized bed: UF.

6. Other: UK.

Domestic classification of heat treatment oil

Type I cold quenching oil:

A. Ordinary quenching oil, used for quenching small size materials with good hardenability.

B. Quick quenching oil, used for quenching large and medium-sized materials.

C. Ultra-speed quenching oil, used for the quenching of large and poor hardenability materials.

D. Bright quenching oil, used for quenching of medium and small section bearing steel, tool and die steel, measuring tool steel and instrument parts under protective atmosphere.

E. Fast bright quenching oil, used for medium-sized and poor hardenability materials for quenching in a controlled atmosphere.

F, No. 1 vacuum quenching oil, used for quenching medium-sized materials under vacuum.

G, No. 2 vacuum quenching oil is used for quenching materials with good hardenability under vacuum.

Type II hot quenching oil:

A, No. 1 isothermal, graded quenching oil, used for hot oil quenching at around 120 ℃.

B, No. 2 isothermal, graded quenching oil, used for hot oil quenching at about 160 ℃.

Type III tempering oil:

A. No. 1 tempering oil, used for tempering at around 150 ℃.

B. No. 2 tempering oil, used for tempering at about 200 ℃