一种铝合金表面热喷涂导辊
By coating the surface of the aluminum alloy heat-conducting roller with tungsten carbide and designing a thickened inner cavity, the problems of low hardness, poor wear resistance, and poor wear resistance of new material particles in the aluminum alloy heat-conducting roller are solved. This enhances the wear resistance of the aluminum alloy heat-conducting roller, improves its strength and precision, and makes it suitable for high-speed friction and chemical media environments.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- FOSHAN DEYISHENGYE ROLLER MAKING CO LTD
- Filing Date
- 2025-08-25
- Publication Date
- 2026-07-17
AI Technical Summary
Aluminum alloy heat-conducting rollers have low surface hardness, poor wear resistance and corrosion resistance in harsh environments, and their long longitudinal length makes the middle part prone to deformation, affecting the accuracy of use.
A tungsten carbide coating is applied to the surface of the aluminum alloy heat-conducting roller, and a thickened section is set in the inner cavity to cooperate with the aluminum alloy cylindrical support. Combined with the biomimetic groove design and cooling channel, the rigidity is enhanced and the wear resistance and corrosion resistance are improved.
It improves the strength and precision of aluminum alloy heat-conducting rollers, prevents deformation, and enhances wear resistance and corrosion resistance, making it suitable for high-speed friction and chemical media environments.
Smart Images
Figure CN224513593U_ABST
Abstract
Claims
1. An aluminum alloy surface thermal spray guide roll characterized by, The device includes a hollow aluminum alloy heat-conducting roller body, a tungsten carbide coating on the outer surface of the aluminum alloy heat-conducting roller body, an aluminum alloy cylindrical support body fitted inside the inner cavity of the aluminum alloy heat-conducting roller body, and a pair of sealing caps. A thickened section extending towards the center is provided around the inner wall of the middle section of the inner cavity of the aluminum alloy heat-conducting roller body. A section of the outer surface of the aluminum alloy cylindrical support body that corresponds to the thickened section on the aluminum alloy heat-conducting roller body is in contact with the inner wall of the thickened section. The pair of sealing caps are detachably and securely installed at opposite ends of the aluminum alloy heat-conducting roller body.
2. An aluminum alloy surface thermal sprayed guide roll as defined in claim 1 wherein, The aluminum alloy heat-conducting roller body has a cooling water inlet and a cooling water outlet at opposite ends. A first through hole is formed at one end of the aluminum alloy heat-conducting roller body corresponding to the cooling water inlet, and a second through hole is formed at the other end of the aluminum alloy heat-conducting roller body corresponding to the cooling water outlet. The cooling water inlet is connected to the first through hole, and the cooling water outlet is connected to the second through hole. A flow channel is formed between the inner wall of the area outside the thickened section of the aluminum alloy heat-conducting roller body and the outer surface of the aluminum alloy cylindrical support. A spiral channel is formed on the outer wall of the area corresponding to the thickened section of the aluminum alloy cylindrical support. The cooling water inlet is connected to the cooling water outlet through the flow channel and the spiral channel.
3. An aluminium alloy surface thermal sprayed guide roll according to claim 1 or 2, characterised in that, The aluminum alloy heat-conducting roller body has mounting grooves at its opposite ends. The bottom of the mounting groove extends a distance from the inner wall of the aluminum alloy heat-conducting roller body towards the center. A sealing ring is installed in the mounting groove, and the bottom end of the sealing cover is pressed against the upper end face of the sealing ring.
4. An aluminum alloy surface thermal sprayed guide roll as defined in claim 3 wherein, The inner walls at opposite ends of the aluminum alloy heat-conducting roller body are formed with internal threads, the mounting groove is disposed on one side of the inner thread, and the outer circumferential surface of the sealing cover is formed with an external thread that mates with the internal thread.
5. An aluminum alloy surface thermal sprayed guide roll as defined in claim 1 wherein, The outer surface of the aluminum alloy heat-conducting roller body is formed with biomimetic grooves arranged at uniform intervals, and the tungsten carbide coating is sprayed on the outer surface of the biomimetic grooves.