MetalBizz
粉末冶金

粉末冶金

经济高效的粉末冶金,用于复杂烧结金属零件

概览

粉末冶金(PM)在精密模具中压实金属粉末,并在高温下烧结形成固态、净形零件。我们的PM工艺适用于齿轮、轴承、链轮和结构件——特别是当复杂几何形状使机加工成本过高时。

我们还提供金属注射成型(MIM),用于需要优越机械性能的更小、高复杂性零件。生产量从5,000到数百万件/年。

加工能力

最大压制吨位

200 tons

最大零件尺寸

150 mm diameter, 100 mm height

公差

±0.05 mm (standard)

密度范围

6.6–7.4 g/cm³ (ferrous), up to 95% relative density

交货周期

Tooling: 3–5 weeks, Production: 2–3 weeks

检测方式

Density measurement, hardness tester, CMM, tensile testing

支持材料

铁基:FC-0208、FN-0208、F-0008
不锈钢:316L、304L
铜基:青铜、黄铜
软磁合金

表面处理

蒸汽处理 — 密封孔隙,提高耐腐蚀性
镀锌 — 牺牲性腐蚀防护
浸油 — 自润滑轴承
发黑 — 美观表面,轻度防腐
浸树脂 — 密封孔隙使零件可承压

为什么选择我们

净成形制造——材料浪费极少
自润滑轴承能力(含油)
可控孔隙率用于过滤应用
热处理、蒸汽处理、电镀等二次加工
MIM可用于小型复杂零件

常见问题

What is powder metallurgy (PM)?

Powder metallurgy is a manufacturing process that compacts metal powders in precision tooling and sinters them at high temperature to form solid, net-shape parts. It is ideal for high-volume production of complex components.

What materials are available for powder metallurgy?

We offer iron-based alloys (FC-0208, FN-0208, F-0008), stainless steel (316L, 304L), copper-based alloys (bronze, brass), and soft magnetic alloys.

What tolerances can powder metallurgy achieve?

Standard PM tolerances are ±0.05 mm. Secondary operations like sizing and machining can achieve tighter tolerances as needed.

What is the typical lead time for PM parts?

Tooling fabrication takes 3–5 weeks, and production runs typically ship within 2–3 weeks after tooling approval.

Can PM parts be heat treated or plated?

Yes. PM parts can undergo heat treatment, steam treatment, plating, and other secondary operations to improve mechanical properties and corrosion resistance.

What is metal injection molding (MIM)?

MIM is a variant of powder metallurgy for small, complex parts requiring superior mechanical properties. It combines the design freedom of plastic injection molding with the strength of metal.

What is the minimum and maximum production volume?

PM is most cost-effective for volumes from 5,000 to millions of parts per year. For lower volumes, we recommend evaluating alternative processes like CNC machining.