Free oiling and self-lubricating elevator guideway guide shoes and preparation method thereof
An elevator guide rail and self-lubricating technology, which is applied in the field of elevators, can solve problems such as dirty elevator rails and bridge compartments, shortened service life, and high operating noise, and achieves simple and easy preparation methods, long service life, and small friction coefficient Effect
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[0018] Example 1
[0019] The weight percentage of each component in the raw material formula is as follows:
[0020] PTFE 75%
[0021] Carbon fiber 18%
[0022] Bronze powder 7%.
[0023] The steps of the manufacturing process are as follows: (1) Prepare the raw materials according to the formula; (2) Put the prepared raw materials on the tooling mold; (3) Die-casting; (4) Test the surface hardness and smoothness; (5) Vacuum Insulation.
[0024] The die-casting forming process adopts 100kg / cm 2 Pressure forming.
[0025] The temperature of the vacuum heat preservation is 100°C, and the heat preservation time is 20 hours.
Example Embodiment
[0026] Example 2
[0027] The weight percentage of each component in the raw material formula is as follows:
[0028] PTFE 85%
[0029] Carbon fiber 12%
[0030] Bronze powder 3%.
[0031] The steps of the manufacturing process are as follows: (1) Prepare the raw materials according to the formula; (2) Put the prepared raw materials on the tooling mold; (3) Die-casting; (4) Test the surface hardness and smoothness; (5) Vacuum Insulation.
[0032] The die-casting forming process adopts 300kg / cm 2 Pressure forming.
[0033] The temperature of the vacuum heat preservation is 400°C, and the heat preservation time is 12 hours.
Example Embodiment
[0034] Example 3
[0035] The weight percentage of each component in the raw material formula is as follows:
[0036] PTFE 80%
[0037] Carbon fiber 15%
[0038] Bronze powder 5%.
[0039] The steps of the manufacturing process are as follows: (1) Prepare the raw materials according to the formula; (2) Put the prepared raw materials on the tooling mold; (3) Die-casting; (4) Test the surface hardness and smoothness; (5) Vacuum Insulation.
[0040] The die-casting forming process adopts 200kg / cm 2 Pressure forming.
[0041] The temperature of the vacuum heat preservation is 200°C to 300°C, and the heat preservation time is 15 to 18 hours.
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