Molybdenum Mandrel For Piercing Seamless Tube

Molybdenum mandrel is a molybdenum alloy made of molybdenum-titanium-zirconium-carbon alloy used to produce the core rod plug of seamless steel pipe piercing machine. This plug is mainly used for perforating seamless steel pipes, such as stainless steel, drill steel, high-temperature alloy steel and other special parts. Molybdenum alloy plug is made of molybdenum powder Mo-1 raw material and rare earth materials.

The molybdenum mandrel is the core high-temperature resistant component of the hot rolling piercing machine. It can withstand huge pressure at high temperatures of 1200~1500℃ and is used to pierce solid billets into hollow pipes.

It is made through mixing, molding, shape processing, high-temperature sintering and other processes. The finished product density is ≥9.4g/cm3. It is mainly used for perforating seamless steel pipes such as stainless steel, drill steel, bearing steel and high-temperature alloy steel.

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Tips: Product diameter specification: Φ 20-300 mm, and can be specially processed according to the drawing requirements.

Mainly used for perforating seamless steel tubes such as stainless steel, brazed steel, bearing steel and high temperature alloy steel.

1. Raw Material: Starting from raw materials, we select high-quality raw materials, which is very prominent in the stability and consistency of products. Identify different brands of raw materials and mark the batch number. And each batch of raw materials shall be sampled, inspected and archived. Ensure the traceability of each finished product and continuously improve the product quality.

2. Powder: The control of the milling process is very accurate, with several large mixers and vibration platforms to ensure that the materials in the pulverizing and mixing process can be fully stirred and evenly distributed, so as to ensure the internal organization consistency of the products.

3. Pressing: In the process of powder compacting, the powder is pressed by isostatic pressing equipment to make its internal structure uniform and dense. We has very perfect batch mold, and also has isostatic pressing equipment to meet the production of ultra-large batches of products.

4. Sintering: In powder metallurgy, after the metal powder is formed by isostatic pressing, it is heated at a temperature lower than the melting point of the main components to make the particles connect, so as to improve the performance of the products, which is called sintering. After the powder is formed, the dense body obtained by sintering is a kind of polycrystalline material. The sintering process directly affects the grain size, pore size and grain boundary shape and distribution in the microstructure, which is the core process of powder metallurgy.

5. Forging: The forging process can make the material obtain higher density, better mechanical properties, and play a role in strengthening the surface. Accurate control of the processing rate and forging temperature of tungsten and molybdenum materials is an important factor for the superior performance of We tungsten and molybdenum materials. A processing method of using a forging machine to apply pressure to a metal blank to plastically deform it to obtain a forging with certain mechanical properties, certain shape and size.

6. Rolling: The rolling process makes the metal material produce continuous plastic deformation under the pressure of the rotating roll, and obtain the required section shape and properties. With advanced tungsten and molybdenum cold and hot rolling technology and equipment, from tungsten and molybdenum metal blank to the production of tungsten and molybdenum foil, We guarantee you more advanced production technology and superior metal properties.

7. Heat-Treat: After the forging and rolling process, the material is subjected to the heat treatment process to completely eliminate the internal structural stress of the material, give play to the material performance, and make the material easier for subsequent machining. We has dozens of vacuum furnaces and heat treatment hydrogen furnaces to meet the rapid delivery of mass production orders.

8. Machining: our material has undergone complete heat treatment, and then processed into various customized sizes by machining equipment such as turning, milling, cutting, grinding, etc., and ensures that the internal organization of tungsten and molybdenum materials is tight, stress-free and hole-free, which can meet the needs of customers.

9. Quality Assurance: Quality inspection and control will be carried out from raw material for each steps of production, so as to continuously ensure the quality every product. At the same time, when finished products are delivered from the warehouse, the appearance, size and internal organization of materials are tested one by one. Therefore, the stability and consistency of products are especially prominent.

Are you a factory or manufacturer?
A: Yes, we are a factory but generally, we use our trading company to handle the business abroad. It will be convenient to receive the remittance and arrange the shipment.

What is the delivery method?
A: Generally, we send cargo by UPS, DHL or FedEx. Also, we can send by sea to seaport or by air to the closest airport.

Why is your product so cost-effective?
A: We cut out the middlemen in the end-to-end manufacturing process. Rather than obtaining semi-finished goods from other suppliers, we obtain our raw material of APT powder directly from its source.

Do you do spot quality inspection or full inspection?
A: 100% full inspection. Inspectors will check the finished product individually, to ensure they adhere to all parameters. All unqualified products are discarded.

How do you ensure your lead time?
A: We have an efficient Order Management System, from material preparation to machining, and finally to a full inspection. Every stage of production is strictly monitored and controlled to give you an accurate delivery time.

What is the MOQ of Molybdenum mandrel ?
A: Depends on quantity, generally, no MOQ limit.

How to pay for it?
A: A bank transfer (T/T) will be acceptable.

What is the delivery time?
A: around 7-20 days which depends on the quantity and production.

What is kind of the package?
A: Generally, we use a carton case or plywood case with protective material inside to ensure the save of cargo

What is the lead time?
A: from order placed to cargo receiving will take around 10-25 days.

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