Carbon-Carbon Crucible Support Shafts

Carbon-carbon crucible support shafts typically work together with C/C crucibles, C/C insulation cylinders, C/C guide tubes and C/C crucible supports to form an efficient thermal field system. During single crystal growth, carbon-carbon crucible support shafts play the following two functions to facilitate consistent, high-quality crystallization of silicon ingots.

1. Reliable supporting

Semicorex carbon-carbon crucible support shafts can resist thermal stress and mechanical impact generated during the crystal pulling process, providing stable support for the crucible and its internal materials.

2. Rotation and vertical lifting

Semicorex carbon-carbon crucible support shafts can function as a trasmission part to enable crucible rotation and up-and-down motion, creating the favorable temperature gradient required for single-crystal formation.

Why choose Semicorex?

1. Strict material control

Semicorex manufactured our carbon-carbon crucible support shafts from high-performance C/C composites processed via chemical vapor deposition and liquid impregnation. This endows our products with superior performance compared with conventional graphite ones, delivering multiple outstanding performances as follows.

A. High strength and toughness to lower shafts’ breakage risks

B. Exceptional high-temperature resistance

C. Superior thermal shock resistance and dimensional stability

D. Low density and light overall weight

Material properties of C/C composites

Density: ≥ 1.30 g/cm³

Bending strength: ≥ 110 Mpa

Compressive Strength: ≥ 160 Mpa

Room-temperature Thermal Conductivity: ≤ 10 W/(m·K)

2. Dependable manufacturing capability

Equipped with complete precision production lines and a professional technical team, Semicorex offers professional technical guidance and process optimization solutions tailored to customers’ drawings and applications. Semicorex is capable of both small-batch trial orders and large-volume mass production, and also support non-standard customized production. We can tailor our carbon-carbon crucible support shafts in height, diameter and shape to fully fit customers’ single crystal furnace configurations.