Production process and product advantages of C90500 copper rod:

1. Production process

Raw material pretreatment

The main raw materials for producing C90500 copper rod include scrap copper, electrolytic copper, zinc ingots, etc. Scrap copper needs to be radiation tested and manually sorted to remove impurities to ensure the purity of raw materials. Some processes will add slag removers (such as industrial salt, refining slag removers) to remove impurities during the smelting process.

Smelting and casting

Smelting: The raw materials are heated to about 1100℃ in an industrial frequency furnace or a large-tonnage electric furnace and melted under normal pressure. The horizontal continuous casting technology (such as "submerged liquid transfer-multi-head multi-stream horizontal continuous casting") can produce multiple copper rods of different specifications at the same time, which is more than 10 times more efficient than traditional processes and reduces smoke emissions.

Casting: The smelted copper liquid is kept warm in a holding furnace (about 900℃) and then enters the continuous casting stage. The crystallization process is controlled by a circulating cooling water system to form a continuous casting rod. During the casting process, the pouring system and riser need to be reasonably designed to avoid defects such as shrinkage cavities and shrinkage.

Forming and processing

Hot extrusion: The continuous casting ingot is formed by a large-tonnage reverse extruder to improve the density and mechanical properties of the copper rod.

Drawing and annealing: The extruded copper rod is straightened and sized by a combined drawing machine, and then annealed to eliminate internal stress and ensure dimensional accuracy and surface finish. Some processes also include pickling, lubrication, stretching and other steps.

Environmental protection and recycling

Scraps and debris can be recycled to the smelting stage for reuse to reduce raw material loss. The bag dust removal system reduces smoke emissions and meets environmental protection standards.

2. Product advantages

Excellent material performance

Wear resistance and corrosion resistance: C90500 is a cast tin bronze (containing about 10% tin), which still maintains high wear resistance and chemical stability in low temperature environments, and is suitable for harsh working conditions such as cryogenic pumps.

High mechanical strength: high tensile strength, good toughness, and can work stably in medium to high load environments.

Good casting performance: The casting has high density and excellent air tightness, which is suitable for manufacturing precision parts such as pump bodies and gears.

Excellent processing performance

Easy cutting and surface treatment: Good cutting performance, the surface can achieve a mirror effect after polishing, which is both functional and decorative.

Welding and molding: Good processing performance at room temperature, convenient welding, suitable for the manufacture of complex parts.

Wide application field

C90500 copper rod can be used for electronic components (such as conductive parts), industrial equipment (pump bodies, valves, gears), decorations and bathroom accessories. Its dezincification corrosion resistance is also suitable for marine engineering.