离心铸造技术

介绍

破碎机铜衬套减少圆锥和旋回破碎机中运动部件之间的摩擦。采用C93800、C93700及其他铜合金通过离心铸造生产。具有致密、无空隙的晶粒结构。

工艺概述

离心铸造通过高速旋转模具并注入熔融金属，离心力将金属向外推，使其在模腔内均匀分布，从而形成致密、均质且孔隙率极低的铸件。

离心铸造的步骤

1. Mold Preparation — The mold is made of a refractory material that can withstand high temperatures and has the desired inner shape of the bushing. It is lined with a release agent to facilitate easy removal of the casting.

2. Melting Process — The copper is melted in a furnace to reach a precise temperature suitable for casting.

3. Centrifugal Casting — The molten copper is poured into the rotating mold. The centrifugal force pushes the molten metal against the mold walls, forming a solid casting. The rotation speed determines the thickness and uniformity of the bushing.

4. Cooling and Solidification — The casting is allowed to cool inside the rotating mold. The controlled cooling rate promotes a fine-grained structure, improving the mechanical properties of the bushing.

5. Finishing — Once solidified, the casting is removed from the mold and undergoes finishing processes such as trimming, machining, and heat treatment to achieve the desired dimensions and properties.

Key Properties

高密度离心力使金属紧密贴合模壁，密度通常超过理论值的99.5%。

低孔隙率— 空气和气体夹杂物迁移至内表面，并在精加工过程中被切削掉。

细粒结构— 受控冷却速率产生均匀的微观结构。相比静态铸造件，具有更好的耐磨性和疲劳寿命。

高效适用于生产批次— 每周期可铸造多个衬套。模具成本低于永久模或压铸。

应用

离心铸造广泛应用于各行业生产破碎机铜衬套，包括：

• 采矿和采石
• 金属加工
• 水泥制造
• 混凝土生产
• 回收和废物管理

离心铸造生产出致密、均匀的衬套，具有细晶结构。适用于中大批量生产。批次间机械性能一致。衬套最大4吨，直径2.5米。

离心铸造能力：最大4吨（重量），2.5米（直径）。