Quvur tegirmon liniyasi

I. Xulosa

The mill is intended for manufacturing of round pipe of Φ20mm-Φ76mm with thickness of 0.9mm–3.0mm from cold-rolled and hot-rolled coil strip by means of unclosed tubular blank with its subsequent welding into tube, edge heating by means of solid state high-frequency welder, longitudinal seam welding in rolls of tube welding machine, cooling, further sizing or shaping and on-stream cutting of endless tube in measured lengths.

Finished productwill be of round, square or rectangular pipe.

Ishlab chiqarish jarayoni kesish mashinasida kerakli kenglikdagi oldindan kesilgan o'ralgan chiziqdan foydalanishni ta'minlaydi.

II.Ishlab chiqarish liniyasining texnik oqimi

{SteelTape}→→ Double-head un-coiler →→Strip-head Cutter and welder→→Spiral Accumulator →→Forming section (Flattening unit +Main driving unit +Forming unit +Guide unit +High frequency induction welding unit +squeeze roller) + De-burr frame →→Cooling unit →→ Sizing unit and straightener →→Flying saw under computer-control →→ Run-out table

III. Asosiy shartlar:  

1. a) Chelik quvurlari spetsifikatsiyasi
2. Round Pipe diameter:  Φ20–Φ76mm

Pipe Thickness:        0.9-3.0mm

2. Square Pipe:           15X15mm –60X60mm

Rectangle Pipe:         10X20mm –40X80mm

Pipe Thickness:         0.9– 3.0mm

3.Pipe Length:        6.0m±3mm  

b) SteelTape spetsifikatsiyasi

1.Material:    Low Carbon steel (δb≤500Mpa, δs≤275Mpa)

2. SteelTape:

Inner diameter:               Φ480-Φ550mm

Outer diameter:               Φmax=1600mm

Strip steel width:          60mm-240mm

Strip steel thickness:      0.9– 3.0mm

The maximum weight:     3.0 tons

1. c) Elektrbu  
2. Dynamic power:  AC380V±10%, 3phases, 50Hz±1.0%
3. Control Power:  AC220V±10%, one phase, 50 Hz±1.0%
4. d) elektr o'rnatilgan quvvat:500 kVt
5. e) Csuzuvchi suv
6. Reservoirfor High Frequencyequipment:  30 m³, one set           
7. Reservoirfor circulating cooling water:    30 m³, one set
8. f) Cbosimli havo
9. Pressure:   0.4Mpa
10. Flow:       1.0m³/h
11. g) Ishlab chiqarish quvvati

Annual output:  20,000 ton, according to the yearly working days、daily working hours and the products.

h) chiziq tezlik: 20-100 m/min

1. i) Oziqlantirish yo'nalishi: O'ngdan chapga
2. Uskunaning tarkibi va bitta blokning asosiy parametrlari:
3. Ikki boshli gidravlik g'altak

1.1. Brifing: Pnevmatik tormoz bilan rulonlarni osongina almashtirish uchun aylanish turi

1.2. Parametrlar:

-     Coil width:    max.240mm

-     Coil OD: max. Ø1600mm

-     Coil ID: Ø 480- Ø 550mm

-     Coil weight:   max. 3.0 tons

1.3. Shlangi mandrelni kengaytirish

1.4. Mandrel holatini aylantirish qo'lda bo'lishi kerak

1.5. Pnevmatik tormoz

2.Kesish va payvand payvandlash mashinasi

2.1 Kesish parametrlari mashinasi:

-   Cutting by Pneumatic

-   Width:      ≤240mm

-   Thickness:   ≤4.0mm

2.2 Qo'lda payvandlash mashinasi

  -     TIG welding machine TIG

• 3.Qafas halqasi

Teskari halqali akkumulyator kesish va payvandchi va shakllantirish chizig'i orasiga o'rnatilgan bo'lib, uning maqsadi yangi bobinning uchini oldingi g'altakning quyruq uchi bilan kesish va birlashtirish uchun ochuvchidan kesish va payvandchiga yangi bobinni oziqlantirish uchun etarli vaqt berishdir.

4. 4. Shakllash va o'lchamlar bo'limi

4.1   Forming mill

4.1.1   Mill entry flattener by up-horizontal roll and below-horizontal roll, one positive seven-roll flattener, one pair of feeding vertical roll.

4.1.2   Forming mill consists of:   

-    Driven stand:          7 sets (Horizontal)

-   Driven stand shaft: Φ80mm

-    Material of shaft:        42CrMo

-  Side roll stand:         8 sets(Vertical)

-  Side roll stand shaft:     Φ45mm

-    Material of shaft:          40Cr

-  Gear box & universal joint: 7 sets

-    Material of gear box:      cast steel

-    Material of bevel gear: 20CrMnTi

-    Main motor :  75kW   Model: Z4-225-11  1 set

-    Main redactor :     ZLY224      1 set

4.2    Sizing mill

4.2.1   Sizing mill consist of:

- Driven stand:        5 sets (Horizontal)

-    Driven stand shaft: Φ80mm

-      Material of shaft:     42CrMo

-    Side roll stand:     5 sets(Vertical)

-    Side roll stand shaft:   Φ45mm

-     Material of shaft:         40Cr

-    Gear box & universal joint: 5 sets

-     Material of gear box:   cast steel  

-     Material of bevel gear:  20CrMnTi

-     Turkshead:       with 4rollers*2sets

-     One speed testing roller for CNC flying saw  

-     Main motor :  75kW   Model: Z4-225-11  1 set

•     Main redactor :     ZLY224      1 set

5.Payvandlash bo'limi

5.1 Payvandlash bo'limi quyidagilardan iborat:  

- Seam guide unit:       1 set

- Squeeze stand:            2 rollers(diameter轴径: Φ45mm)

- De-burr frame:         1 set (2 heads)

- Horizontal unit for seam ironing:  2rollers

5.2 Sovutish bo'limi

- Cooling trough:            1 set

    -   Cooling trough length:       3.0 m

5.3 Qattiq holatdagi yuqori chastotali payvandchi (GGP250KW)   

GGp200KVt

-   Nominal power: 250kW

-   Rated DC power: Pd=300kW

-   Rated DC voltage: UdN=450V

-   Rated DC current: IdN=670A

-   The whole efficiency: η≥85%

-   Output power: Pout＞250kW

-   Designed frequency: f=300~350kHz

-   MOSFET inverter: 60kW×5

-   Tank circuit output mode: no welding transformer output, secondary resonance

•   With water-water cooling system for welder
• 

6. CNC uchuvchi ishqalanish arra

6.1 Uchuvchi kesish, mexanik qism quyidagilardan iborat:

-   Saw disk:        OD600mm×ID80mm×4.0mm

-   Saw waver:       Pneumatic 

-   Pipe clamp:       Pneumatic 

-   Saw carriage travel:         Rack and pinion with gear lath

- Motor for travel:    DC 15KW

-   Motor for sawing:  AC 22KW

-   Length Tolerance: 0-6mm

7. 7. Chiqib ketish jadvali

7.1  Run-out system consists of:

- Roller conveyer 15 meter (including packing box)15m；

- Pnevmatik tarzda teskari;

Pnevmatik tarzda itarildi；

8.EelektrBoshqarish tizimi  

8.1 Spiral akkumulyator

- A.C. driver,

8.2 Double D.C. drive and control for forming and sizing mill.

- D.C. driver, ，

- Main D.C. drive panel control(instrument etc.)

- Tegirmonni ishlatish paneli (tezlikni sozlash, boshqarish va h.k.).

8.3 Uchib ketishni boshqarish tizimi

- 15 kVt quvvatga ega DC motorli arra vagon haydovchisi 

- LCD operatsion paneli

(uzunlik va partiyani sozlash, boshqaruv asbobi va boshqalar).

9. Roliklar

9.1 Roliklarning materialini shakllantirish va o'lchamlari

- Material:   Cr12

- Qattiqlik: 60 HRC +/-2

9.2  Welding rollers material

-   Material :   H13

• Qattiqlik: 50 HRC +/-3