Centrifugal cast copper jacket

Product Description

Features

Parameters

Application Scenario

Related Products

Primary Function and Why Copper Alloys?

This manufacturing method is key to understanding the product's advantages.

How it Works: A permanent mold (a steel cylinder) is spun at high speeds around its horizontal axis. Molten copper is poured into the spinning mold.
Centrifugal Force: This force throws the molten metal outward against the inner wall of the mold, creating a hollow, cylindrical shape without the need for a central core.
Resulting Properties:
- Density and Soundness: The centrifugal force pushes impurities (which are lighter) toward the inner diameter (ID), where they can be machined away. This creates a very dense, pore-free, and gas-free structure on the outer diameter (OD), which is critical for its function.
- Fine Grain Structure: The rapid and directional solidification results in a fine, uniform grain structure, enhancing the mechanical properties of the metal.

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When to Choose Brass Over Other Materials?

Better than plastic bushings when higher load capacity is needed. Better than steel when corrosion resistance is critical. Better than bronze when cost is a factor (though bronze may offer better wear resistance in some cases).

ZCuSn5Zn5Pb5

Casting: ZCuSn5Zn5Pb5 has good casting properties and can be formed by various casting methods such as sand casting, permanent mold casting, and pressure casting, enabling the manufacture of various complex-shaped parts. Machining: Due to its moderate hardness, it has good machinability. It can be processed by mechanical processing methods such as turning, milling, drilling and grinding to produce part surfaces and dimensions that meet different precision requirements. Heat Treatment: In order to improve the structure and properties of the alloy, appropriate heat treatment such as annealing and solution treatment can be carried out. Annealing can eliminate casting stress and improve the toughness and workability of the alloy; solution treatment can improve the strength and hardness of the alloy.

C86300

Processing Characteristics Casting: C86300 has good casting performance and can be easily formed by various casting methods, such as sand casting, die casting and investment casting. It can produce complex-shaped components with high dimensional accuracy and surface quality, meeting the needs of different application scenarios. Machining: The alloy has good machinability and can be processed by turning, milling, drilling, grinding and other machining methods. It can obtain high-precision components with good surface finish, which is convenient for subsequent assembly and use. Welding: C86300 has certain weldability and can be welded by appropriate welding methods. However, in the welding process, it is necessary to pay attention to controlling the welding parameters to avoid problems such as cracks and porosity and ensure the welding quality.

ZCuSn10Pb1.

Physical Properties Density: The density is about 8.8g/cm³. With a relatively large density, the weight factor needs to be considered in the design and use process, especially in some occasions where the weight is strictly required. Melting Point: The melting point is generally about 900℃ - 950℃. Compared with pure copper, its melting point is reduced, which is beneficial to the melting and forming in the casting process. Electrical and Thermal Conductivity: Due to the high copper content, ZCuSn5Zn5Pb5 still has good electrical and thermal conductivity and has certain application potential in some occasions where good electrical or thermal conductivity is required.

ZCuSn10Pb5.

Main Elements: The main alloying elements in ZCuSn10Pb5 are tin (Sn) and lead (Pb). It typically contains about 10% tin and 5% lead. The high tin content provides good corrosion resistance and wear resistance, while lead helps to improve the alloy's machinability and lubricity.

ZCuPb10Sn10.

Mechanical Manufacturing：It is suitable for manufacturing heavy-duty and high-speed wear-resistant parts, such as bearings, gears, and worm wheels. For example, in industrial machinery, the bearings and gears that need to work under high load and high speed can use ZCuPb10Sn10 to improve service life and reliability.

ZCuPb15Sn8.

ZCuPb15Sn8 has good casting performance and can be easily formed by various casting methods, including sand casting, die casting and investment casting. This allows for the production of complex-shaped components with high dimensional accuracy. Machining: Although it has a certain hardness, the alloy has good machinability. It can be processed by turning, milling, drilling and other machining methods to obtain components with high precision and good surface quality. Heat Treatment: Appropriate heat treatment processes, such as annealing and quenching, can be carried out on ZCuPb15Sn8 to further improve its mechanical properties and microstructure, meeting the specific requirements of different applications.

Why Use a Copper "Jacket"?

Copper is chosen for one primary reason: its exceptional thermal conductivity (approximately 4x higher than steel). A "jacket" implies it is assembled onto another component to serve as a protective layer. The copper jacket's job is to rapidly pull heat away from the component it is protecting and transfer it to a cooling medium.

a) Continuous Casting Machines:

Mold Plates and Liners: The water-cooled mold that molten steel first pours into is often lined with high-conductivity copper or chromium copper plates. While large, these function as liners or sleeves for the cooling system.
Support Rollers and Guides: Sections that guide the solidifying strand of steel use copper-alloy sleeves within rollers to withstand the radiant heat and provide a smooth bearing surface.
Oscillation Marks: The mechanism that oscillates the mold uses large, heavy-duty bronze bushings to handle the extreme load.

b) Rolling Mills:

Bearings and Bushings: In the roll necks (the ends of the rolls that go into the bearing housing). While modern mills use advanced roller bearings, many older and heavy-duty mills still use bronze sleeve bearings because of their high load capacity and ability to embed contaminants.
Guide Boxes and Repeaters: Sleeves and liners that guide the hot bar or sheet through the rolling stands are often made from wear-resistant copper alloys like aluminum bronze.

c) Blast Furnaces and Electric Arc Furnaces:

Cooling Staves: Large copper sleeves are integral parts of cooling pipes and staves that line the furnace walls, carrying water to extract heat and protect the furnace structure.
Tapping Hardware: Components like tuyeres (which blast air into the furnace) and parts associated with the tap hole can feature copper sleeves for their cooling properties.
Electrode Arms: In EAFs, the large arms that hold the graphite electrodes may use high-strength, high-conductivity copper alloy bushings and connectors.

d) Slag Handling and Processing:

Slag Pot Cars: The bearings and bushings on the cars that transport molten slag must withstand heat and abrasive dust. Self-lubricating bronze bushings are common here.

Summary

A centrifugal cast copper jacket is a high-performance component manufactured by spinning a mold to create a dense, hollow cylinder of copper. Its primary purpose is to serve as a heat-extracting interface in extreme temperature applications, most notably as the mold in continuous casting of steel. Its superior thermal conductivity and the robust integrity achieved through the centrifugal casting process make it indispensable in heavy metallurgical and industrial settings.

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Quick Question And Answer

Bronze Bushing, Bronze Liner, Bronze Slide, Bronze Nut, Bronze Worm Gear, Bronze Slider And Other Bronze Alloy

Do you have requirements on quantity?

We can provide the quantity of drawings according to the customer, because there is a price advantage when there is a quantity, precisely because the quantity is mostly superior.

What material of copper do you have the most wear-resistant?

Also according to the customer with the frequency, performance, environment and other conditions to determine, generally we are recommended 555 such material.

Can we finish and deliver in a week?

Yes, there is no problem at all; the deadline is decided by the customer!

What kind of casting process can your company do?

Our company has many years of experience in casting machinery processing, with sand casting, centrifugal casting, metal casting, investment casting and other casting processes.

What are the commonly used materials?

Frequently made materials include: brass, tin bronze, lead bronze, aluminium bronze, phosphor bronze.

What kind of packaging do you use?

Depends on whether you are exporting or not, all export packaging is made of 15nm thickened non-fumigation boards, the domestic standard packaging is 10mm thin non-fumigation boards, the legs are solid wood, the domestic simple packaging is a cardboard box or grass rope winding.

What is your after-sales service commitment?

Our after-sales service commitment, the spot is shipped at that time, expedited 3 days delivery, normal about 20 days delivery, bulk about 20-30 days delivery, to ensure that the material, to ensure that the size, any problem free replacement or unconditional refund.

Customers want to expedite?

Our company's normal working period is 30 days, if you have special requirements, we can also discuss with the factory, with the time off work to expedite processing, expedited costs to talk to the customer. Depending on the circumstances of the expedited cost.