Edge Disc Cutter
Material: Mold Steel + H13, DC53, GSY, GLD Cutter Type: Single/Double/Eccentric/Center (twin) disc cutter Hub Feature: Removable / Monoblock Useage:TBM shield machine accessory Application: Tunneling of Diversion Tunnels, City Subway Tunnels, Railway Tunnels, Cable Tunnels, etc Applicable brand: Herrenknecht, Wirth, Dcmag, Robbins, Jarva, Kawasaki, Mitsubishi, IHI, Lovat, STEC, CRCHI, CREG, etc Size: 17inch-21inch or Customizable Custom Design: Size, color, accessory can be customized
Description
1. Using 99.95% high purity raw tungsten carbide powder. 5. Can be customized according to customer samples or drawings. Series HRC62-66 DC53 Applicable to high performance models above 160 MPa GLD Applicable to high performance models above 160 MPa Material of cutter ring H13, with hardness HRC56-59, ,C 0.47-0.52 Si 0.9-1.2 Mn 0.4-0.6 Cr 4.8-5.2 Mo 1.1-1.4 V 0.8-1.00 P 0.015 S 0.015 shrink fit with hub. According to the work condition, the cutter ring should features: Generally the cutter ring material in two types, totally abrasion-resistant steel and steel with tungsten carbide inserts. The cutting edge of roller disc cutter is desiged in different shape according to different hardness of rock. Main customers ApplicationsIntroduction of cemented carbide shield knife:
2. It has high wear resistance and impact resistance.
3. High rock hardness and high impact load, use coarse particle WC, rock impact is small impact load is small use medium particle WC as raw material.
4. Shield machine tools according to the cutting principle, generally recognized that there are two types of hobbing and cutting knives (according to the different nature of the tunnel surrounding rock, different cutting purposes, these two types of tools can be further subdivided). The cutting principle of hobbing is mainly that the tool relies on extrusion to break the rock and is generally used for rock tunneling. When crossing loose strata, but there are large gravel (grain size greater than 400mm), and the content of a certain proportion, can also be used hobbing tool. In other cases where the geological conditions of the tunnel are complex and changeable, where rock (not too strong) and general soil (or clay or sand) are frequently interspersed, it is also possible to use hobbing tools, i.e. in a composite shield machine. The cutting principle of the cutting knife is mainly the shield machine forward at the same time, the tool with the cutter rotation on the excavation surface soil body to produce axial (along the tunnel forward direction) shear force and radial (cutter rotation tangential direction) cutting force, and constantly cut down the excavation in front of the soil body. Cutting knife is generally applicable to the grain size of less than 400mm sand and pebbles, sandy soil, clay and other loose body strata. The commonly used grades are YG8YG8C YG9C YG11C.TBM CUTTER RING
17inch-21inch or Customizable
Use hardness
Feature
H13
HRC56-59
HRC60-63
Most cost-effective
GSY
HRC61-64
HRC62-66
DC53,with hardness HRC60-63,C 0.9-1.1 Si 0.9-1.2 Mn 0.2-0.4 Cr 7.5-8.5 Mo 1.9-2.3 V 0.3-0.5 P 0.015 S 0.015.
GSY,with hardness HRC61-64,Ingredient confidentiality.
GLD,with hardness HRC62-66,C 0.68-0.78 Si 0.9-1.2 Mn 0.2-0.4 Cr 7.0-8.0 Mo 2.2-2.5 V 1.7-2.2 P 0.015 S 0.015.
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