Lift counterweight and manufacturing method thereof
The invention discloses an elevator counterweight and manufacturing method thereof, which includes steps of: mixing 60-70 weight quotient of mine spar after crushing, cleaning and drying, 10-15 weight quotient of iron powder, 8-15 weight quotient of cement and 5-7 weight quotient of water to prepare...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | The invention discloses an elevator counterweight and manufacturing method thereof, which includes steps of: mixing 60-70 weight quotient of mine spar after crushing, cleaning and drying, 10-15 weight quotient of iron powder, 8-15 weight quotient of cement and 5-7 weight quotient of water to prepare wet material; manufacturing the counterweight after forming, demouding, maintaining and hardening. Advantages of the invention are: cost of the counterweight is lower than cast iron counterweight, the counterweight is free of sulfur element, chemical property of the counterweight is stable, manufacture for the counterweight is simple and does not need special device, and pollution to environment is less. |
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