Round steel quenching at tempering furnace

The round steel quenching and tempering furnace mainly uses induction heating modulated by round steel, bar stock, wire, and steel rod to realize the quenching and tempering function.

1. Main technical indicators of round steel quenching and tempering furnace production line

1. Quenched and tempered material: 30MnSi

2. Mga pagtutukoy ng bilog na bakal at kawad: Φ7.1-Φ12.6mm

3. Temperatura ng pagsusubo: 930-960 ℃ Temperatura ng temperatura: 400-460 ℃

4. Pag-init ng kuryente ng pag-init ng pag-ikot ng bakal na pag-quench at pag-tempering furnace: mga 370 degree / tonelada

5. Paggawa mode ng pag-ikot ng bakal na pagsusubo at pag-tempering furnace: patuloy na operating system

6. Center taas ng bilog na bakal na pagsusubo at pag-tempering linya ng produksyon ng pugon: 1000mm

7. Feeding direction of round steel quenching and tempering furnace production line: left (right) feed

8. Mga kinakailangan sa pamamahagi ng kuryente para sa pag-ikot ng bakal na pag-quench at pag-tempering furnaces: kabuuang naka-install na kapasidad ng bawat linya: 1250KVA taon

9. Round steel quenching and tempering furnace output: 60,000 tons/year, consisting of 4 lines.

10. Ang pinakamataas na bilis ng linya ng operating ng bilog na bakal na pagsusubo at pag-tempering linya ng produksyon ng pugon:

Φ7.1mm ———— 100m / min

Φ9.0mm ———— 90m / min

Φ10.7mm ———– 60m / min

Φ12.6mm ———– 40m / min

12. Cooling water requirements for round steel quenching and tempering furnace production line (single line):

a. Product circulating cooling water

Daloy: 100m3 / h Presyon: 0.4MPa

Water temperature: not higher than 33℃

Water quality: Urban water supply water quality standard CJ/T206-2005 (Ministry of Construction)

b. Cooling water for induction heating furnace:

Daloy: 100m3 / h Presyon: 0.4MPa

Water temperature: not higher than 33℃

Water quality: Urban water supply water quality standard CJ/T206-2005 (Ministry of Construction)

c. Compressed air requirements (single line):

Dosis: 3m3 / min Presyon: 0.6MPa Temperatura ng tubig: hindi mas mataas sa 33 ℃

Compressed air quality: GB/T13277-91 “Compressed air quality grade for general use”

2. Pag-configure ng kagamitan at paglalarawan ng bilog na bakal na pagsusubo at pag-tempering linya ng produksyon ng pugon:

Ang bawat pag-ikot ng bakal at pag-tempering furnace ng PC steel bar ay ginawa sa pamamagitan ng pagguhit ng kagamitan, kagamitan sa paghahatid ng traksyon, all-solid static frequency conversion na pag-init ng supply ng kuryente, induction heating furnace, spray ng paglamig na tangke ng tubig, haydroliko na paggugupit at kagamitan sa pag-reverse, wire take-up kagamitan, at AC motor Ito ay binubuo ng variable frequency control system, PLC control system, temperatura system ng pagsukat at sentralisadong sentralisadong yunit ng kontrol.

Ang bawat kagamitan sa linya ng produksyon ay partikular na may kasamang:

1. Mechanical part:

Itinakda ang pay-off na rak

Frame ng pamamahala ng cable 1

Mekanikal na derusting machine 1

Drawing forming machine 1

Straightening machine 1 set

Paglilinis ng makina 1

1#Towing machine 1 set

Quenching water tank 1

Tempering sink 1

2 # Makakabit na machine 1 set

Ang set ng haydroliko na nababaligtad na machine 1 set

Take-up machine 2

2. Komposisyon ng bilog na bakal na pagsusubo at pag-tempering furnace:

KGPS-500KW/6KHZ medium frequency induction heating power supply 1 set

Ang CYP-200KW / 40KHZ IGBT sobrang audio frequency induction heating power supply 1 set

Ang CYP-200KW / 50HZ IGBT sobrang audio frequency induction heating power supply 1 set

KGPS-250KW/8KHZ KGPS intermediate frequency induction heating power supply 1 set

Isang hanay ng kabinet ng conversion ng dalas

90KW (wire drawing machine drive) 1 set

5.5KW (drive ng scoring machine) 1 set

11KW (hinimok ng traktor) 2 set

4KW (drive ng take-up machine) 2 set

Operation console and operation box 6 sets

Pangunahing console 1

Take-up na operasyon box 2 set

Jog operating box (mekanikal na pagbaba, tractor, pagguhit ng machine bawat isa) 3 mga hanay

Thermometer (saklaw ng pagsukat ng temperatura 300-1000 ℃) dalawa

3. Mechanical equipment composition and technical performance of round steel quenching and tempering furnace

(1) Ang istraktura ng pag-ikot ng dobleng braso ng pay-off frame, ang gitna ng manggas ay konektado sa nakapirming haligi sa pamamagitan ng tindig, ang gitna ng manggas ay maaaring paikutin at iposisyon nang mahina, at ang kawad ng suspensyon ng kawad ay konektado sa gitna manggas ng bolts, na maaaring paikutin nang bahagya kapag binabago ang rolyo, at iposisyon ito kapag nagbabayad, Maginhawa upang ikonekta ang wire rod ng ulo at buntot.

(2) Wire management frame Ang wire management frame ay isang tapered na istraktura, at ang layunin nito ay baguhin ang hugis ng wire rod ring sa isang linear na hugis upang maiwasan ang mga hindi maayos na mga wire.

(3) Mechanical rust remover The mechanical rust remover consists of 2 sets of 90-degree repeated bending rollers. Driven by motor-lifter-lead screw (or pneumatic), the movable bending roller is pushed to extend or retract. Ensure sufficient bending angle between the steel bar and the bending roller to peel off the oxide scale to the maximum. After the oxide skin is peeled off, it falls into the collection tank below for easy cleaning. Fully sealed structure is adopted to prevent dust from escaping in the workshop.

(4) The PC steel rod concave thread forming of the drawing machine adopts the method of matching the drawing speed and the rotation speed of the mold. The mold is well stressed, the mold life is long, and the lead of the steel rod is artificially controlled to ensure the appearance quality of the product. The reducer of the wire drawing machine adopts a medium-hard tooth surface reducer, and there are protective devices at the tank body and the belt. The wire drawing tank is equipped with a shut-down pneumatic pinch roller to prevent the machine from shutting down and disordering the line. The diameter of the reel is 900mm, the maximum drawing speed is 100m/min, the wire drawing machine motor is 90KW, and the rotary die motor is 5.5KW.

(5) Straightening machine The straightening machine is passive and consists of two sets of bending rolls forming 90 degrees each other. Under the power of the tractor, it forms a tension straightening and straightening the steel bar.

(6) washing machine Ang washing machine ay binubuo ng 2 mga hanay ng mga gulong wire na bakal, na hinihimok ng isang motor, upang alisin ang mga labi sa ibabaw ng bakal na pamalo. Ang motor ay 0.55KW, at ang reducer ay isang patuloy na variable na reducer ng paghahatid.

(7) There are two tractors. They are respectively placed in front of the quenching heating furnace, and after the tempering and cooling device, they play the role of full-line dragging. The traction machine is composed of three pairs of traction rollers, the lower roller is active and the upper roller is passive. The lower roller device is on the output of a non-standard transmission box with a single shaft input and three output shafts. The upper roller device is in the chute of the upper sliding frame. Keep to ensure the clamping force of the steel bar and ensure the smooth operation of the steel bar. The two tractors adopt micro-tension control technology, which can adjust the tension at any time according to the process needs and keep it between the two tractors. The micro-tension control technology can be used to adjust the tension and maintain at any time according to the process needs, which is automatic control between the two tractors. Under the formation of constant tension to provide guarantee to meet the needs of product quality. The traction roller is composed of two grooves, and the traction roller is arranged on the optical axis through an expansion sleeve to facilitate the replacement of the traction roller. The motor is 11KW, and the reducer is a planetary cycloid reducer.

(8) Ang pagsusubo at pag-tempering na aparato sa paglamig Ang aparato sa pagsusubo at pag-tempering ay gawa sa hindi kinakalawang na plato, ang pamamaraang paglamig ay ang paglamig ng tubig, at ang dulo ng outlet ay nilagyan ng isang aparato ng pamumulaklak ng hangin. Ang tangke ng pagsusubo ay 6 metro ang haba, at ang tempering tank ay 5 metro ang haba

(9) Ang haydroliko na nababaligtad na shearing machine ay ginagarantiyahan ang kasabay na paggupit at pag-urong alinsunod sa mga kinakailangan ng mabilis na paggupit ng linya ng produksyon, na tinitiyak ang 100% paggugupit ng paggupit, at pagtiyak na tuluy-tuloy na pagpapatakbo ng linya ng produksyon. Ang motor na de-motor na istasyon ay 2.2KW.

(10) The take-up machine is designed according to the requirements of steel bar pay-off, and the rotation speed of the take-up reel changes regularly with the running speed of the steel bar, realizing regular wiring. The motor is 4kw, and the reducer is a worm gear reducer.