描述
Product Overview
This purple copper round plate is a flagship product of Wenzhou Dongyao Trading Co., Ltd., featuring base metal sheets for non-ferrous metals, with high-purity cathode electrolytic copper serving as the raw material.
Purple copper itself possesses extremely high electrical conductivity, thermal conductivity, and malleability. Its resistance to oxidation and corrosion is superior to that of brass, aluminum, and other metals. Purple copper round plates have a uniform, flat, and smooth surface with no cracks, pores, impurities, or black spots. They can be directly subjected to secondary processing such as bending, stamping, turning, welding, and etching.
It is widely used in various scenarios such as new energy conductive terminals, electrical distribution cabinet conductive gaskets, mold heat dissipation base plates, vacuum equipment electrodes, chemical equipment corrosion-resistant linings, jewelry stamping, and electronic components. Dongyao Trading can customize products with any diameter and thickness according to customer design requirements, offering cutting, deburring, surface polishing, and lamination for anti-oxidation processing. Stock is ample.
Product Features
1. Ultra-high purity materials: Copper content ≥ 99.90%, oxygen-free copper with a conductivity rate of 100% IACS, extremely low electrical and thermal conductivity losses.
2. High-quality surface finish: The plate undergoes a rolling and annealing process, resulting in a smooth and refined surface with no pores, layers, oxidized black spots, and minimal risk of cracking during processing.
3. Strong plastic processing capabilities: It is soft and easy to bend, deep-draw, machine, and mill. Cold processing does not require preheating, and the formed material shows no signs of cracking.
4. Corrosion and oxidation resistance: Pure copper features a natural passivation protective layer, making it less prone to rust in air and environments with weak acids and bases, thereby extending its lifespan.
5. Flexible customization of specifications: Diameter ranges from 5 mm to 600 mm, thickness ranges from 0.1 mm to 50 mm. Coverage of all sizes, with support for zero-cut samples and large quantities of complete sheets.
6. One-stop service package: includes cutting, polishing, chamfering, lamination, and electroplating pre-processing, accompanied by material inspection reports.
7. Fast delivery of in-stock items: Large warehouses in Wenzhou maintain ample inventory. Small sample orders can be shipped the same day, while large orders involving entire vehicles can be delivered directly through logistics.
Complete Product Information
1. Specifications
Material: T2 / T3 copper;
Thickness range: 0.1mm ~ 50mm;
Diameter range: 5mm ~ 600mm (large round plate can be spliced and customized);
Tolerance standard: thickness tolerance ± 0.02 mm, diameter tolerance ± 0.1 mm;
Surface state: cold-rolled luminous surface, acid-washed luminous surface and polished mirror are optional;
Hardness: Soft (refrigerated), semi-hard, and hard forms of hardness are optional.
2. Raw materials and processes for production
The raw materials are chosen of high-quality copper to eliminate the recycling of impure copper alloys;
Process: Electrolytic copper smelting ingot → hot rolled rough cut → multiple stages of cold rolling → vacuum refilling and softening → precision cutting → circular cutting → surface polishing / coating finished product, full-time numerical control equipment controls dimensional accuracy.
3. Applicable use scenarios
Electric and electrical: conductive gaskets, flow drains, electrode terminals, switching conductive parts;
New energy industry: lithium battery connectors, energy storage and heat storage substrates, photovoltaic conductive accessories;
Mechanical molds: mold heat dissipation pads, injection molding cooling pads, vacuum sealed flanges;
Chemical corrosion prevention: lining of corrosion-resistant equipment, heat exchange plate of acid-base medium;
Hardware processing: jewelry stamping, precision gaskets, electrical conductive components for instrumentation.
4. Quality Control and Testing
Each batch of products comes with the original material list and supports third-party spectroscopic testing;
Before leaving the factory, it completes the appearance detection of the plate surface, the conductivity test, and the thickness and size test.
The three core indicators of copper purity, oxygen content and hardness are strictly controlled, and substandard products are not released from the warehouse.
5. Packaging and Transportation
Small cut samples: waterproof and rustproof oil paper parcel + cardboard wrapper;
The entire large round board: multiple layers of rust-proof film wrap + border protectors to prevent bumps;
Wenzhou warehouse delivers goods, supports logistics, express delivery, whole car freight, can be distributed throughout the country, and export can be made into wooden box fumigation packaging.
6. After-sales service, samples and payment settlement
Sample service: supports small sample cutting free of charge (only a small freight charge), and can send samples for testing materials first;
After-sales guarantee: Material irregularities, dimensional errors exceeding specifications are returned unconditionally, and the technical team provides guidance on machining selection.
Settlement methods: Online platforms secure transactions, offline transfers to the public, high-volume orders can negotiate accounting periods, and support the issuance of VAT-specific invoices.
Enterprise qualifications: Wenzhou Dongyao Trading has formal business qualifications, non-ferrous metals operating licenses, and can provide enterprise business licenses, material testing reports, export customs information.
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