Cobalt Alloy Shear Blades Used for Cutting Molten Glass Gobs
Shear blades for cutting molten glass gobs are typically made of a high-strength, heat-resistant material. These materials are able to withstand the high temperatures and abrasive nature of molten glass without deforming or wearing down too quickly.
- TNM
- China
- 20-45days
- 3000pcs/ month
- Information
Detailed Product Description
In general, a glass product such as a glass bottle or glass tableware is a molten glass lump of a predetermined size obtained by cutting molten glass continuously supplied from a glass melting furnace with a pair of horizontal reciprocating shear blades. As a gob, it is dropped into a mold provided below and formed into a glass bottle, tableware or other glass product.
When cutting molten glass, the temperature is high at 1000 ° C. to 1400 ° C., and the cutting blade portion is also hot, so it is easy to wear. If worn, the cut end of the gob becomes defective, and this causes streaky shear marks to remain in the product.
In terms of material, the shear blade is generally made of high-quality tool steels, such as high-speed steel (HSS), powdered metallurgy steel (PM), or tungsten carbide and ceramic. Some people will also choose cobalt-based alloy, at least the cutting blade portion is made of a Co-based alloy having a specific composition.
Usually we can supply and customize cobalt based shaer blades for you.
Cobalt Alloy Chemical compositions and properties (%)
| Brand | C | Mn | Si | Cr | Ni | Mo | W | Co | Fe | Hardness(HRC) |
| ST 1 | 2.2-2.8 | - | ≤2.0 | 29.0-33.0 | ≤3.0 | ≤1.0 | 11.0-14.0 | Bal. | ≤3.0 | 51-55 |
| ST 6 | 0.9-1.4 | 1.0 | ≤1.5 | 27.0-31.0 | ≤3.0 | ≤1.5 | 3.5-5.5 | Bal. | ≤3.0 | 38-44 |
| ST 12 | 1.1-1.7 | 1.0 | ≤1.0 | 28.0-32.0 | ≤3.0 | - | 7.0-9.5 | Bal. | ≤3.0 | 44-49 |
| ST 21 | 2.0-3.0 | 1.0 | ≤1.0 | 25.0-39.0 | 1.75-3.75 | 5.0-6.0 | - | Bal. | ≤3.0 | 56-60 |
Cobalt Chrome Alloy 6
Cobalt Alloy 6 is a common type of cobalt-based alloy that is known for its excellent wear resistance, high-temperature strength, and corrosion resistance. It is commonly used in applications where high hardness and resistance to wear and erosion are required. Cobalt Alloy 6 contains a high percentage of cobalt (around 60%), as well as chromium, tungsten, and carbon, which all contribute to its mechanical and chemical properties. The material is also known for its ability to maintain its hardness at high temperatures, making it a popular choice for use in extreme environments.
Cobalt Chrome Alloy 6 Cutter Blade Application
ST 6 is a popular material for manufacturing shear blades due to its excellent wear resistance and high hardness. Shear blades made from ST 6 can withstand the high stress and friction involved in the cutting process and are often used for cutting molten glass gobs and tough materials such as metal, plastics, and composites. ST 6 shear blades are known for their long life, which can result in reduced downtime and maintenance costs.
ST 6 shear blades are also commonly used in industrial applications such as metal processing, paper and pulp production, and plastics manufacturing. The blades can be custom designed to meet specific cutting needs, including blade thickness, edge sharpness, and the blade angle. The use of cobalt alloy 6 in shear blades can also help to reduce the need for frequent sharpening and replacement, leading to increased productivity and efficiency.
What is the Details of our Cobalt Chrome Alloy blade ?
| Material : | Cobalt Alloy 6# |
| Process : | Powder Metallurgy , it is short for PM |
| Hardness: | 38-44 HRC |
| Density : | 8.3 g/cm ³ |
| Size : | According to your requirements |
| Properties : | Wear and corrosion resistance, high temperature resistance |
| Application : | Cutting molten glass gobs |
| Instructions : | Drawing made upon cutomers request |
| Sharpening surface : | available |
| Tolerance control : | grinding surface , tolerance upon drawing |
| Production lead time | Samples 10 days , normal order 15-25 days |
| Production capacity : | 3000pcs one month. |
| Package : | carton or wooden case , pallet for export |
Powder metallurgy process :
conatct us for more details now , thank you .
