Heavy-duty vehicle disc brake pad and manufacturing process thereof
A disc brake pad and brake pad technology, applied in the field of brake pads, can solve problems such as failure, unstable braking performance, thermal recession, etc., and achieve the effects of stable friction coefficient, excellent mechanical performance, and stable insulation.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
preparation example Construction
[0043] The preparation process of the disc friction plate provided by the present invention comprises steps:
[0044] cutting board;
[0045] Unwind and level the coiled plate, and cut it into plates or strips of a certain width. According to the corresponding vehicle model, such as the slat size of the brake pad specified by the heavy-duty vehicle, select a plate with an appropriate thickness, and use a shearing machine to cut it into a certain width of the slat.
[0046] stamping;
[0047] According to the corresponding model, such as the mold corresponding to the heavy vehicle and the stamping equipment of suitable tonnage, the basic shape of the brake pad steel plate is punched out, and it meets the requirements of a certain loading size and flatness.
[0048] Degreasing;
[0049] The water-based degreasing agent and water are mixed in a certain proportion to reach a certain pH value (10-13), and then heated in the degreasing tank of the degreasing machine to a certain ...
Embodiment 1
[0077] Base polyetheretherketone 12 kg, steel wool fiber 6 kg, potassium titanate whisker 4 kg, cashew nut shell powder 8 kg, graphite 4 kg, aluminum powder 4 kg, antimony sulfide 4 kg, barite 8 kg, refined chromium 4 kg of iron ore powder, 8 kg of kaolin and / or fluorite, 6 kg of iron red. Weigh the raw materials of the brake pads according to the above ratio, put them into the mixer and mix them evenly, then put them into the molding machine for hot pressing molding, wherein the system pressure is 16MPa, the back pressure is 12MPa, and the holding time is 3min; the upper mold of the molding machine 190°C, middle and lower mold 195°C. Curing treatment, heat preservation at 120°C for 5 hours, heat preservation at 150°C for 5 hours, heat preservation at 180°C for 5 hours, and heat preservation at 200°C for 3 hours to obtain a high-temperature-resistant heavy-duty disc brake pad. The friction coefficient is stable at 0.415-0.504 at 100-400°C, and the thermal decay is 4.76%, whic...
Embodiment 2
[0079] Base polyetheretherketone 17 kg, steel wool fiber 12 kg, potassium titanate whisker 8 kg, cashew nut shell powder 16 kg, graphite 6 kg, aluminum powder 6 kg, antimony sulfide 6 kg, barite 14 kg, refined chromium 6 kg of iron ore powder, 14 kg of kaolin and / or fluorite, 8 kg of iron red. Weigh the raw materials of the brake pads according to the above ratio, put them into the mixer and mix them evenly, then put them into the molding machine for hot pressing molding, wherein the system pressure is 14MPa, the back pressure is 12MPa, and the holding time is 4min; the upper mold of the molding machine 160°C, middle and lower mold 165°C. After curing at 110°C for 6h, 140°C for 3h, 170°C for 5h, and 210°C for 2h, a heavy-duty disc brake pad with high temperature resistance was obtained. The friction coefficient is stable at 0.410-0.514 and the heat decay is 4.66% at 100-400°C, which is tested under the bench test machine, and has good heat recovery. Wear rate at 350°C is 0.3...
PUM
Property | Measurement | Unit |
---|---|---|
Wear rate | aaaaa | aaaaa |
Wear rate | aaaaa | aaaaa |
Wear rate | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com