Shoemaking machine barrel screw

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Screw diameter: φ 20 – φ 220

Clamping force: 250t-3200t

Injection volume: 30g-30000g

Technical indicators:

Tempering hardness: hb280-320

Nitriding hardness: 950-1100hv

Nitriding depth: 0.50-0.80mm

Nitriding brittleness: ≤ Level 2

Surface roughness: RA 0.4 μ M

Straightness of screw: 0.015m m/m

Hardness of alloy layer: hrc60-72

Depth of alloy layer: ≥ 3mm

Hardness of surface chromium plating layer after nitriding: ≥ 950hv

Thickness of chromium plating layer: 0.025 ~ 0.10 mm

Screw type:

For different formulations and products, screw can be selected: general type, pin type, barrier type, separation type, exhaust type, etc.

Injection molding machine small parts

Material: 38CrMoAl a nitriding treatment, surface hardness: HV ≥ 900, nitriding layer depth: 0.5-0.8mm

2. Material: special alloy steel, after vacuum quenching and other heat treatment process, can greatly improve the service life of three small pieces

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