About Us | Metal Casting | Casting Workshop | Machining Workshop | Quality Inspection | Blog | Contact  
   

Gear Machining Casting Company

 

Product Name:
Gear Casting in China, Ductile Iron Gear Casting, Steel Casting Automobile Gear Factory, Gear Casting Workshop

The failure mode of gear:
1. Teeth surface abrasion
In general, when the lubricating oil mix abrasive, it will bring about teeth wear in the running.
2. Teeth face agglutination
The friction between the teeth surface is bigger and so that meshing area temperature is too high. Two gears would bond each other with its bad lubrication, the disappeared oil film thickness between surfaces which make the metal surface of two teeth contact directly.
3. Fatigue point erosion
The tooth surface will form a small crack under the effect of alternating contact stress. But as time goes on, the crack may scale horizontally to rings gradually, at which some fatigue shallow pits would be forming on the surface of the tooth.
4. Teeth breakage
The gear root often endures cyclic stress state in service, when it is higher than fatigue limit, cracks would be forming in the roots. With the crack expanding gradually, gear tooth breakage happens because of the driving load.
5. Teeth plastic deformations
Under the impact load or overloads, teeth surface will form partial plastic deformation, so that the curved surface of the involute tooth profile appears distorted.

Material Grades:

Country

Standard

Equivalent Grades of Ductile iron (SG Iron, Nodular Graphite Iron)

ISO

ISO 1083

400-15

450-10

500-7

600-3

700-2

800-2

900-2

400-18

China

GB 1348

QT400-18

QT450-10

QT500-7

QT600-3

QT700-2

QT800-2

QT900-2

USA

ASTM A536

60-40-18

60-42-10

70-50-05

80-55-06

100-70-03

120-90-02

65-45-12

80-60-03

Germany

DIN 1693

GGG40

GGG50

GGG60

GGG70

GGG80

Austria

European

EN 1563

EN-GJS-400-15

EN-GJS-450-10

EN-GJS-500-7

EN-GJS-600-3

EN-GJS-700-2

EN-GJS-800-2

EN-GJS-900-2

EN-GJS-400-18

Japan

JIS G5502

FCD400

FCD450

FCD500

FCD600

FCD700

FCD800

Italy

UNI 4544

GS370-17

GS400-12

GS500-7

GS600-2

GS700-2

GS800-2

France

NF A32-201

FGS370-17

FGS400-12

FGS500-7

FGS600-2

FGS700-2

FGS800-2

UK

BS 2789

400/17

420/12

500/7

600/7

700/2

800/2

900/2

India

IS 1865

SG370/17

SG400/12

SG500/7

SG600/3

SG700/2

SG800/2

Spain

UNF

FGE38-17

FGE42-12

FGE50-7

FGE60-2

FGE70-2

FGE80-2

Belgium

NBN 830-02

FNG38-17

FNG42-12

FNG50-7

FNG60-2

FNG70-2

FNG80-2

Australia

AS 1831

300-17

500-7

600-3

700-2

800-2

400-12

Sweden

SS 14 07

0717-02

0727-02

0732-03

0737-01

0864-03

Norway

NS11 301

SJK-400.3

SJK-500

SJK-600

SJK-700

SJK-800

 

SJK-400

Production Process:
Sand Casting, Automatic Molding, Machine Molding, Shell Molding, Green Sand Casting, Resin Sand Casting,

Supplier:
Ductile Iron Foundry in China, S.G. Iron Casting Manufacturer, Iron Foundry, China Foundry

Our main products include Gray Iron, Ductile Iron and Cast Steel casting parts for tractors, trucks, agricultural, construction, mining machinery, stove and boilers, pump, valve, tugboat, electrical facilities, cranes, machines, cars, pipe fittings, docks, cooking ware, excavators etc.

Dandong Foundry is also producing various seeding knife points, fertilizer boots, plough tine, press wheel, cast seeding carriers, heavy duty knife points, wing seeder knife points, seeding system attachment, seeding tubes for our our clients in AU.

Product Photos:

HOME PAGE | CONTACT US

 

Borui Casting International Ltd. All rights reserved.
Add: No.1-4-11, Qianyang, Donggang City, Dandong, Liaoning, China                               iron foundry | sitemap