Φ219-1067 thick-walled steel pipe medium frequency induction hardening production line

Introduce：Medium-frequency induction hardening selection method for thick-walled steel pipe, power calculation basis for thick -walled steel pipe medium-frequency induction quenching production line , heat treatment process and working process description of thick-walled steel pipe, determination of frequency and power of medium-frequency induction hardening power supply for thick-walled steel pipe

Consultation

Related Products

Related Pictures

Introduction

Consultation

I. Overview

This equipment is mainly used for low and medium pressure boiler tubes, petroleum cracking tubes, high pressure fertilizer equipment tubes, high pressure boiler tubes, structural tubes, conveying fluid tubes, gas cylinder steel tubes, casings, pipeline steel tubes, etc. Quenching and tempering treatment of the pipe body .

钢管热处理生产线111111222.png

1. Technical parameters:

( 1 ) Workpiece diameter range: Φ 219 mm-Φ1067mm .

(2) Wall thickness: 10mm- 5 0mm.

( 3 ) Length of heatable tube: 6.0m-13m .

( 4 ) Tube heating maximum temperature: 1 12 0 °C .

( 5 ) Maximum temperature difference (circumferential and radial): ±1 0 °C .

(6) tubes running speed: 3mm / S-30mm / S available.

( 7 ) Tube motion and sensor power control can realize linkage control with PLC and automatic temperature control.

( 8 ) Process requirements: The average temperature of the rear tube heated to 1 050 °C .

( 9 ) Production: 5 tons / hour .

2, the basis for the calculation of the power of the medium-frequency induction hardening production line for thick-walled steel pipes:

Annual production: annual working hours (calculated by 300 days) × (using low valley electricity, 8 hours per day ) × 5 tons /

Hours = 18,000 tons / year.

Heating power: 2400KW .

Calculation basis P=C×G×(T2-T1)/0.24×t×ƞ

P - power supply	(Unit: KW )
G ——Heating weight when heating the beat (unit: Kg )
T - heating temperature	(Unit: °C )
T - initial temperature	(Unit: °C )
t ——heating beat	(Unit: second)

- heating the metal to be average specific heat (unit: kcal / kg * deg.] C)

Heating rate : 110mm/60s .

Frequency selection : 500 ~ 1000Hz . (Refer to the table below).

3. Thick-walled steel pipe medium frequency induction hardening equipment consists of:

Serial number	content		Remarks
1	Thyristor intermediate frequency power supply KGPS- 6 00/0. 5	2 sets
2	Thyristor intermediate frequency power supply KGPS- 60 0/0. 8	2 sets
3	Thyristor intermediate frequency power supply KGPS- 30 0/ 1	1 set
4	6 00KW compensation capacitor 0.75-1000-0. 5 S	2 sets
5	60 0KW compensation capacitor 0.75-1000-0. 8 S	2 sets
6	30 0KW compensation capacitor 0.75-1000- 1 S	1 set
7	GTR 40 0 (heating φ2 19 - 35 6 steel pipe)	1 set
	GTR 5 50 (heated φ 406 — 508 steel pipe)	1 set
	GTR 7 00 (heating φ 559 — 6 60 0 steel pipe)	1 set
	GTR 8 50 (heated steel pipe of φ 711 - 813 )	1 set
	GTR1 100 (heating of steel φ9 14 -106 7)	1 set
8	180 0KVA rectifier transformer	1 set	Two 600 KW intermediate frequency power supplies share one unit
8	180 0KVA rectifier transformer	1 set	Two 60 0KW intermediate frequency power supplies share one unit
1 2	Closed cold water tower	2 sets	ZXZ-N60 , ZXZ-N200T
1 3	Quenching sprinkler system	1 set
1 4	Automatic Control System	1 set
1 5	Transfer roller	1 set
1 6	Loading rack	1 set
1 7	Cutting bench	1 set
1 8	Console	1 set
1 9	Feeding hydraulic trolley	1 set
20	Unloading hydraulic trolley	1 set

The mechanical transmission device comprises : an inclined roller conveyor unit, a gear motor, a loading platform and a discharging platform , a loading and unloading mechanism, and the like.

The control part includes: sensor, infrared thermometer, PLC , industrial computer, operation cabinet and so on.

The set of equipment sensors is a whole structure, which can realize quick positioning and installation, quick connection of water and electricity , and can be easily adjusted up and down to meet the heating requirements of steel pipes of various specifications.

Second, the thick-walled steel pipe heat treatment process and work process description:

1 , heat treatment process:

1. The steel pipe is placed on the loading platform by the crane to carry out the baling → the feeding machine shifts the lifting and feeding → the variable frequency feeding roller conveys the steel pipe forward → quenching , normalizing electromagnetic induction heating to the process required temperature ( 850 ~ 112 0 deg.] C) composed of an infrared temperature measurement and feedback cutting → stocker internet closed-loop control regulating electromagnetic power frequency induction heating furnace → → spray quench cutting machine translation movements

Third , the main description of the equipment and technical indicators

Power supply: 27 00KW (divided into 4 sets of 600 KW heating power supply ) + 3 00kW ( 1 set of 30 0KW insulation power supply );

Power frequency: 5 00HZ ; 8 00HZ ; 10 00HZ ;

Fourth, the determination of the frequency and power of the medium frequency induction hardening power supply for thick-walled steel pipes :

1, a heating apparatus of the present set of requirements than the Curie point heating furnace according to the selected frequency is calculated to be 5 00Hz and 8 00Hz, so that frequency power supply selection of two frequencies.

2. According to the weight of the steel pipe and the tactility of the production cycle, the required heating power is 2 400KW+300KW . This power can meet the overall quenching and tempering of all steel pipes , but the heating speed of different steel pipes is different .

Understand Wikipedia： Tempering

Recommended Reading： Medium frequency quenching and tempering production line

Recommended Reading： quenching and tempering furnace

PREV：Φ219-1067 thick wall steel pipe medium frequency induction quenching and tempering production line

NEXT：Drill pipe quenching and tempering

[ BACK ]

ALL GATEGORIES

Φ219-1067 thick-walled steel pipe medium frequency induction hardening production line