Shield machine of Tunnelling tool is a kind of advanced equipment for underground tunnel construction. This equipment can do the field operation that not affect any construction on the ground. This is available and best choice for crowd city areas, protecting buildings or historic site on the ground.
There have a very big circle blade in the front of shield machine, We have mounting various kind of cutters on the blade. In order to promote stable and long life time of application, we have research and developed special tungsten carbide materials that mainly suitable for tunnel borer machine: high impact toughness, high abrasion resistance, stable physical ability, the appearance of fine workmanship etc.
Tungsten Carbide TBM shield cutter Features:
Production Ahead
Business partners all over Japan,South Korea,Russia etc
Can design the best grade according to its applications
Custom-Made Available
Recommend Grade: G30
cemented carbide block for shield machine has superior wear resistance and impact toughness, and similar
products with higher speed of drilling and digging.Series of ball tooth bit passivation
using cycle is long, not to grind the life span of about the same diameter RenPian grinding
head drill bit 5-6 times of life, is beneficial to save auxiliary working hours, physical labor
and reduce workers to speed up the project.
1. promise the 100% virgin material .
2. Sintere by vacuum sintering furnace and HIP machine with excellent specifications without any hole.
3. suply blank and surface passivation.
4. tungsten carbide button's high hardness of the cemented carbide and other characteristics are widely used in mining and quarrying and cutting process, also may be placed on a heavy excavators used in bit.
5. we can product the goods according your drawing and sizes.
6. our new product grade's grain size can up to 6.0μm,highest wear-resisting and excellentest impact resistance.
Grade
| Density (g/cm3) | T.R.S ( MPa) | Hardness (HRA) | Application recommended |
YG6 | 14.95 | ≥1900 | ≥90.5 | For coring crowns,electric coal drill bits,coal cutting picks,oil cone bits and scraping knife bits,used in geological prospecting,coal mining and oil well boring. |
YG8 | 14.80 | ≥2200 | ≥89.5 | Used as a core drill, electric coal drill, coal cutter tooth, oil roller bit and scraper button bit. |
YG8C | 14.80 | ≥2400 | ≥88.5 | Mainly used for small and medium-sized drill bit tooth, and as a rotating exploration drill bush. |
YG11C | 14.40 | ≥2700 | ≥86.5 | Most used in the drill bit and rock bit used for cutting high hardness materials ball tooth. |
YG13C | 14.2 | ≥2850 | ≥86.5 | mainly used for rotary drill bit used for cutting high hardness materials in ball mill. |
YG15C | 14.0 | ≥3000 | ≥85.5 | Used in oil cone bit and soft in the hard rock digging cutting tools. |
YK05 | 14.8 | ≥2500 | ≥90.5 | Mostly used as the buttons of small and mediumsized bits to cut soft and medium hard formations |
YK15 | 14.6 | ≥2450 | ≥87.6 | Suitable to strips,conical buttons for rotary percussion-resistant geological prospecting buttons,cut soft and medium hard formations. |
YK20 | 14.4 | ≥2500 | ≥86.8 | Primarily for the buttons and inserts of rotary percussion bits to cut medium-hard and very hard formations, |
YK25 | 14.4 | ≥2550 | ≥87.2 | Primarily for the buttons and inserts of rotary percussion bits to cut medium-hard,hard,and very hard formations. |
Shield machine is a kind of using shield method of tunnel boring machine, the full name of shield tunnel boring machine, special is a kind of tunneling engineering machinery, modern shield tunnelling machine integrates light, machine, electricity, liquid, sensing, information technology as a whole, has the cutting soil excavation, conveying soil crusts, tunnel lining, measure orientation deviation, and other functions, Involving geology, civil engineering, machinery, mechanics, hydraulic, electrical, control, measurement and other disciplines technology, and according to the different geology of the "tailored" type of design and manufacture, high reliability requirements. Shield tunneling machine has been widely used in subway, railway, highway, municipal, hydropower and other tunnel projects.
According to the working principle of shield machine, it is generally divided into hand digging shield, extrusion shield, semi-mechanical shield (local air pressure, global air pressure), mechanical shield (open-chest cutting shield, air pressure shield, mud pressure shield, earth pressure balance shield, mixed shield, special-shaped shield).
Classification of shield machine: according to different classification of shield machine, shield excavation methods can be divided into: open type, mechanical cutting type, mesh type and extrusion type, etc.