一种高强度耐磨顶头结构

By incorporating a high-strength alloy steel body, a laser cladding reinforcement layer, and a wear-resistant ceramic layer on the mandrel, combined with an internal hollow cavity and reinforcing rib design, the deformation and wear problems of the mandrel during metal processing are solved, improving the mandrel's wear resistance and heat dissipation performance, and ensuring processing quality and efficiency.

CN224508020UActive Publication Date: 2026-07-17FUXIN METALLURGICAL SPECIAL EQUIPMENT MANUFACTURING (JINGJIANG) CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
FUXIN METALLURGICAL SPECIAL EQUIPMENT MANUFACTURING (JINGJIANG) CO LTD
Filing Date
2025-06-23
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing mandrels are prone to deformation, wear, or breakage during metal extrusion and piercing processes due to contact with high-temperature and high-pressure metal blanks, affecting processing quality and efficiency.

Method used

The top body is made of high-strength alloy steel. The outer surface is laser-clad with nickel-based alloy powder and tungsten carbide particles to form a reinforcing layer, and then sprayed with a hard ceramic wear-resistant layer. The interior is equipped with hollow cavities, heat dissipation cavities, and staggered reinforcing ribs to improve overall strength and wear resistance, and enhance heat dissipation capacity.

Benefits of technology

It significantly improves the overall strength and deformation resistance of the mandrel, reduces wear, extends service life, ensures machining accuracy and reliability, lowers operating temperature, and improves stability and reliability.

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Abstract

本实用新型公开了一种高强度耐磨顶头结构，包括顶头本体、强化层和耐磨层，所述顶头本体采用高强度合金钢制成，所述强化层采用激光熔覆在顶头本体外表面，所述耐磨层采用硬质陶瓷涂层，所述顶头本体内部开设有空心腔，所述顶头本体后端开设有散热腔，所述散热腔内部固定安装有加强筋，所述加强筋数量有若干个，分别以所述散热腔内部依次交错对称分布，所述强化层包裹在顶头本体外端，所述耐磨层喷涂覆盖在强化层外端。本实用新型通过顶头本体内部开设的空心腔、加强筋和强化层的设置，显著提高了顶头的整体强度和抗弯、抗扭能力，减少了在加工过程中的变形，保证了加工精度，通过耐磨层有效抵抗金属坯料的磨损，延长顶头的使用寿命。
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Claims

1. A high-strength, wear-resistant mandrel structure, characterized in that: The device includes a top body (1), a reinforcing layer (2), and a wear-resistant layer (3). The top body (1) is made of high-strength alloy steel. The reinforcing layer (2) is laser-clad onto the outer surface of the top body (1). The wear-resistant layer (3) is made of hard ceramic coating. A hollow cavity (101) is provided inside the top body (1). A heat dissipation cavity (4) is provided at the rear end of the top body (1). A reinforcing rib (5) is fixedly installed inside the heat dissipation cavity (4). There are several reinforcing ribs (5), which are symmetrically distributed alternately inside the heat dissipation cavity (4).

2. A high strength wear resistant drift structure according to claim 1, wherein: The reinforcing layer (2) is wrapped around the outer end of the top body (1), and the wear-resistant layer (3) is sprayed and covered on the outer end of the reinforcing layer (2).

3. A high strength wear resistant drift structure according to claim 2, wherein: There are several heat dissipation cavities (4), which are symmetrically distributed around the rear end of the top body (1).

4. A high strength wear resistant drift structure according to claim 3, wherein: The cross-sectional shape of the reinforcing rib (5) is trapezoidal.