As a commonly used machining method, heat treatment is widely used in production. Therefore, in the heat treatment process, in order to standardize the market economic order of heat treatment and avoid unfair competition, the quotation guiding principles of heat treatment are formulated. It provides a reference basis for heat treatment enterprises to contract processing and formulate processing prices.
In the heat treatment industry, the price of processing business should be based on three basic factors: first, the cost of processed parts. Second, the technological content of the processed parts. Third, the risk premium and reasonable profit.
The main cost of heat treatment lies in basic energy loss, process materials and auxiliary materials, equipment depreciation, site and plant rent sharing, interest on investment, taxes and labor fees payable, etc.
The calculation of heat treatment quotation is mainly carried out by referring to the formula in the comprehensive evaluation index system and management of heat treatment industry. Among them, the basic power consumption, basic fuel consumption, basic industrial power consumption and basic industrial fuel consumption of each process in heat treatment shall be taken as the base. Through ni=nb × K1 × K2 × K3 × K4 × K5，Ri=Rb × K1 × K2 × K3 × K4 × K5。 You can also refer to the unit consumption value evaluated by the industry.
Where: Ni - process power consumption quota of a heat treatment. NB -- standard industrial power consumption. RI - basic fuel consumption. RB - basic industrial fuel consumption. K1 -- conversion process coefficient. K2 - heating mode coefficient. K3 - production mode coefficient. K4 - workpiece material coefficient. K5 - loading factor.
What are the quotation of heat treatment jpg
Price of specific heat treatment items
1. Annealing and tempering
(1) Subject to electric furnace, the price will be reduced by 30% for solid fuel furnace heating:
High temperature annealing (greater than or equal to 900 ℃): 1.2; Complete annealing (750-900): 0.8.
(2) Recrystallization annealing, high temperature tempering:
Artificial aging (500-700 ℃): 0.6; Spheroidizing annealing, isothermal annealing: 1.2; Bright annealing and packing annealing: 1.1.
2. Normalizing class
The price of solid fuel furnace heating is reduced by 30% (excluding the straightening fee):
Box type electric furnace normalizing: 0.7; Well type electric furnace normalizing: 0.8; Salt furnace normalizing: 0.8.
3. Conditioning (excluding the straightening fee)
Box type and trolley type electric furnaces less than 950 degrees: 1.5; Box type and trolley type circuits greater than or equal to 950 degrees: 1.8.
4. Salt bath furnace quenching
(1) Including tempering, cleaning, excluding straightening fees; Salt bath, alkali bath cooling, 30% markup:
Carbon steel and low alloy steel parts: 2.0; High alloy steel parts: 3.0; High speed steel cutting tools (simple parts) including three tempering and cleaning: 15; High speed steel cutting tools (complex parts) including three tempering and cleaning: 20.
(2) Die quenching:
Carbon steel, low alloy steel, simple mold: 3.0; High alloy steel, complex mold: Negotiable.
5. Electric furnace quenching
Carbon steel and low alloy steel less than or equal to 950 degrees: 1.5.
6. Induction quenching and flame quenching
(1) With tempering and without straightening:
Power frequency quenching: 2.5; Medium frequency quenching and ultra audio frequency quenching: 2.0.
(2) High frequency, flame quenching:
Shaft and gear: 1.5; Steel guide rail and complex plane parts: 2.0; Flame quenching of special small parts and infiltrated layers: Negotiable; Flame quenching depth greater than 3mm: according to power frequency; Flame quenching depth less than 3mm: press high frequency.
