Big Large Girth Gear for Transmission Spare Parts

Anhui Bio Environment Protection Technology Company Limited / 2022-06-27

Big Large Girth Gear for Transmission Spare Parts

  • Application:Industry
  • Hardness:According to Customer′s Requirement
  • Gear Position:External Gear
  • Manufacturing Method:Cast Gear
  • Toothed Portion Shape:Spur Gear
  • Material:Steel

=== Base Info ===

  • Type:Circular Gear
  • Max. Diameter: 15m:Max. Module: 45
  • ISO 9001:: 2008 Certificated:BV & SGS Certificated
  • Manipulate Way:Forced Manipulation
  • Changes Way:Stepped
  • Transport Package:Suitable for Shipping
  • Specification:according to the customer′s requirement
  • Trademark:CIC
  • Origin:China

=== Description ===

Basic Info.

Type Circular Gear Max. Diameter: 15m Max. Module: 45 ISO 9001:: 2008 Certificated BV & SGS Certificated Manipulate Way Forced Manipulation Changes Way Stepped Transport Package Suitable for Shipping Specification according to the customer′s requirement Trademark CIC Origin China

Product Description

CITICIC is the casting & forging center in central-south China, possessing 50t electric arc furnace, 60t LF ladle refining furnace, and 60t VD/VOD refining furnace, etc. We can pour 350t liquid steel one time and yields more than 200,000t of high quality liquid steel and can produce the high quality steel of more than 260 steel grades such as carbon steel, structural alloy steel and the structural steel, refractory steel and stainless steel of special requirement. The maximum weight of casting, gray casting, graphite cast iron and non-ferrous casting is 200t, 30t, 20t and 205t separately.

Big Large Girth Gear for Transmission Spare Parts
 

Features:

Module Range: 10 Module to 70 Module.

Diameter: Min 800mm to16000 mm.

Weight: Max 120 MT single piece.

Three different designs: Fabricated steel - forged ring - rolled plate

Standards / Certificates: • UNI EN ISO • AWS • ASTM • ASME • DIN

Big Large Girth Gear for Transmission Spare Parts
 

Advantages:

- Products with Customers' Designs

- Strong Machining & Heat Treatment Abilities

- Strict Quality Control

- Prompt Delivery

- Experience in Cooperation with Fortune 500 Companies

Big Large Girth Gear for Transmission Spare Parts
 

Process:

Forging / Casting

Normalizing & Tempering-Proof Machining

Quenching & Tempering

Finish Machining (Teeth Grinding)

Big Large Girth Gear for Transmission Spare Parts
 

We can offer you in various process conditions solutions for Many End Markets and Applications

--Mining

--Metallurgy

--Power Generation

--Sugar

--Cement Plant

--Port Machinery

--Oil and natural

--Papermaking

--OEM gear case

--General Industrial

Big Large Girth Gear for Transmission Spare Parts
 

Specifications Of Gear:

No.

Item

Description

1

Diameter

≤15m

2

Module

≤45

3

Material

Cast Alloy Steel, Cast Carbon Steel, Forged Alloy Steel, Forged Carbon Steel

4

Structure From

Integrated, Half to Half, Four Pieces and More Pieces

   

5

Heat Treatment

Quenching & Tempering, Normalizing & Tempering, Carburizing & Quenching & Tempering

   

6

Tooth Form

Annular Gear, Outer Gear Ring

7

Standard

ISO, EN, DIN, AISI, ASTM, JIS, IS, GB

 

Inspection And Test Outline Of Girth Gear:

No.

Item

Inspection Area

Acceptance Criteria

Inspection Stage

Certificates

1

Chemical 
Composition

Sample

Material Requirement

When Smelting
After Heat Treatment

Chemical Composition 
Report

2

Mechanical
Properties

Sample (Test Bar on the Gear Body)

Technical Requirement

After Heat Treatment

Mechanical Properties 
Report

3

Heat 
Treatment

Whole Body

Manufacturing Standard

During Heat Treatment

Heat Treatment Report
Curves of Heat 
Treatment

4

Hardness 
Test

Tooth Surface, 3 Points Per 90°

Technical Requirement

After Heat Treatment

Hardness Teat Report

After Semi Finish 
Machining

     

5

Dimension 
Inspection

Whole Body

Drawing

After Semi Finish

Machining

Dimension Inspection 
Report

Finish Machining

     

6

Magnetic Power Test (MT)

Tooth Surface

Agreed Standard

After Finish Gear 
Hobbing

MT Report

7

UT

Spokes Parts

Agreed Standard

After Rough Machining

UT Report

After Welded

     

After Semi Finish 
Machining

     

8

PT

Defect Area

No Defect Indicated

After Digging
After Welded

PT Record

9

Mark Inspection

Whole Body

Manufacturing Standard

Final Inspection

Pictures

10

Appearance Inspection

Whole Body

CIC's Requirement

Before Packing (Final Inspection)

 

11

Anti-rust 
Inspection

Whole Body

Agreed Anti-rust Agent

Before Packing

Pictures

12

Packing 
Inspection

Whole Body

Agreed Packing Form

During Packing

Pictures

 

Facilities For Manufacturing Gear Ring:

No

Item

Description

1

Smelting & Casting Capability

40t, 50t, 80t Series AC Electric Arc Furnace
2×150t, 60t LF Ladle Refining Furnace
150t, 60t Series VD / VOD Furnace
20×18m Large Pouring Facility

We can pour 900t refining liquid steel one time, and achieve vacuum poured 600t steel ingots.

We can produce the high quality steel of more than 260 steel grades as carbon steel, structural alloy steel and the structural steel, refractory steel and stainless steel of special requirement. 

The maximum weight of casting steel, gray casting, graphite cast iron and non-ferrous casting is 600t, 200t, 150t and 20t separately.

2

Forging Capability

The only one in the word, the most technologically advanced and the largest 
specification18500t Oil Press, equipped with 750t.m forging operation machine
8400t Water Press
3150t Water Press
1600t Water Press
Φ5m High Precision Ring Mill (Germany)
Φ12m High Precision Ring Mil
We can roll rings of different sections of carbon steel, alloy steel, high temperature alloy steel and non-ferrous alloys such as copper alloy, aluminum alloy and titanium alloy. 
Max. Diameter of rolled ring will be 12m.

3

Heat Treatment Capability

9×9×15m, 8×8×12m, 6×6×15m, 15×16×6.5m, 16×20×6m, 7×7×17m Series Heat Furnace and Heat Treatment Furnaces

φ2.0×30m, φ3.0×5.0m Series Heat Treatment Furnaces
φ5.0×2.5m, φ3.2×1.5m, φ3.0×5.0m, φ2.0×5m Series Carburizing Furnaces &
Nitriding Furnaces & Quenching Bathes
φ2.0×30m Well Type CNC Electrical Furnaces
Φ3.0×5.0M Horizontal Gas Temperature-differential Furnace
Double-frequency and Double-position Quenching Lathe of Pinion Shaft

4

Machining Capability

1. ≥5m CNC Heavy Duty Vertical Lathes

12m CNC Double-column Vertical Lathe
10m CNC Double-column Vertical Lathe
10m CNC Single-column Vertical Lathe
6.3m Heavy Duty Vertical Lathe
5m CNC Heavy Duty Vertical Lathe

 

2. ≥5m Vertical Gear Hobbing Machines
15m CNC Vertical Gear Hobbing Machine
10m Gear Hobbing Machine
8m Gear Hobbing Machine
5m Gear Hobbing Machine
3m Gear Hobbing Machining

 

3. Imported High-precision Gear Grinding Machines
0.8m~3.5m CNC Molding Gear Grinding Machines

 

4. Large Boring & Milling Machines
220 CNC Floor-mounted Boring & Milling Machine
200 CNC Floor-mounted Boring & Milling Machine
160 CNC Floor-mounted Boring & Milling Machine

 

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