A sintering tool for silicon carbide ceramic crystal boats

By improving the sintering fixture structure of silicon carbide ceramic boats, rapid positioning and support of the boats were achieved, solving the displacement and deformation problems caused by traditional fixtures, and improving sintering quality and the versatility of the fixtures.

CN224353590UActive Publication Date: 2026-06-12SUZHOU YUNZHISHENG NEW MATERIAL TECHNOLOGY CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SUZHOU YUNZHISHENG NEW MATERIAL TECHNOLOGY CO LTD
Filing Date
2025-07-31
Publication Date
2026-06-12

AI Technical Summary

⚠Technical Problem

The existing silicon carbide ceramic boat sintering fixtures are not precise enough in terms of support and positioning, which makes the boats prone to displacement or deformation during the sintering process, affecting the dimensional accuracy and appearance quality of the finished product.

⚗Method used

A sintering fixture including a fixed limiting plate, a backing plate, a support plate, and a locking screw was designed. The fixed limiting plate and positioning components enable rapid positioning, clamping, and support of the crystal boat, absorbing thermal deformation stress and adapting to the clamping requirements of crystal boats of different thicknesses and specifications.

🎯Benefits of technology

It improves the sintering quality of the crystal boat, prevents displacement and deformation, reduces cracks, enhances the dimensional accuracy and appearance quality of the finished product, and strengthens the versatility of the tooling.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to sintering processing technical field especially relates to a kind of sintering frock of silicon carbide ceramic crystal boat, including base, intermediate support plate, first backing plate and backing plate etc., the upper side of base middle part is connected with left and right two intermediate support plates, the first backing plate is placed in the front and rear two parts of intermediate support plate, the first backing plate is placed with backing plate uniformly.This utility model is fixed with the contact and fixation of first limiting plate and first limiting base and base, then install first backing plate and second backing plate etc., then the crystal boat body is placed on backing plate, and is fixed after contact with backrest, then install adjusting limiting plate, and then push adjusting compression plate and move to the crystal boat body limiting, to be able to quickly position, clamping and support to crystal boat body, it is convenient for crystal boat body quick fixation, prevent crystal boat body displacement or wobble in sintering process, reduce deformation and crack, improve sintering quality.
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