Steel pin mould compression molding elevator counterweight block and preparation method thereof
A technology of compression molding and counterweight, which is applied in the field of steel pin molded elevator counterweight and its preparation, can solve problems such as poor counterweight, and achieve the effects of long service life, strong reliability, and excellent chemical properties
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Examples
Embodiment 1
[0018] A steel pin molded elevator counterweight of the present invention, the chemical composition of the counterweight is as follows by weight percentage, C: ≤0.15-0.25%, Si: 0.20-0.40%, Mn: 0.75-0.35%, P : ≤0.03-0.05%, S: ≤0.025-0.050%, Cr: 12.5-16.5%, N: 0.30-0.55%, Mo: 0.20-0.4%.
[0019] A method for preparing steel pin molded elevator counterweights according to the present invention comprises the following steps: step 1) melting the above-mentioned raw materials according to the ratio, loading the raw materials into a melting furnace through an automatic feeding machine, and then controlling the temperature of the melting furnace At 1780°C-1850°C, the melting time is 180 minutes-250 minutes. Step 2) For one refining, control the temperature of the refining furnace at 1600-1700 degrees Celsius, blow and stir for 20-30 minutes, then raise the temperature of the refining furnace to 1750-1780 degrees Celsius for 120-180 minutes. Step 3) Secondary refining, using a vacuum ...
Embodiment 2
[0022] A steel pin molded elevator counterweight of the present invention, the chemical composition of the counterweight is as follows by weight percentage, C: ≤0.15-0.25%, Si: 0.20-0.40%, Mn: 0.75-0.35%, P : ≤0.03-0.05%, S: ≤0.025-0.050%, Cr: 12.5-16.5%, N: 0.30-0.55%, Mo: 0.20-0.4%, also including alloying element V, where V by weight percentage is: 0.15 -0.20%.
[0023] A method for preparing steel pin molded elevator counterweights according to the present invention comprises the following steps: step 1) melting the above-mentioned raw materials according to the ratio, loading the raw materials into a melting furnace through an automatic feeding machine, and then controlling the temperature of the melting furnace At 1780°C-1850°C, the melting time is 180 minutes-250 minutes. Step 2) For one refining, control the temperature of the refining furnace at 1600-1700 degrees Celsius, blow and stir for 20-30 minutes, then raise the temperature of the refining furnace to 1750-1780...
Embodiment 3
[0026] A steel pin molded elevator counterweight of the present invention, the chemical composition of the counterweight is as follows by weight percentage, C: ≤0.15-0.25%, Si: 0.20-0.40%, Mn: 0.75-0.35%, P : ≤0.03-0.05%, S: ≤0.025-0.050%, Cr: 12.5-16.5%, N: 0.30-0.55%, Mo: 0.20-0.4%, V: 0.15-0.20%, also including the alloying element Nb, of which Nb by weight percentage: 0.30-0.60%.
[0027] A method for preparing steel pin molded elevator counterweights according to the present invention comprises the following steps: step 1) melting the above-mentioned raw materials according to the ratio, loading the raw materials into a melting furnace through an automatic feeding machine, and then controlling the temperature of the melting furnace At 1780°C-1850°C, the melting time is 180 minutes-250 minutes. Step 2) For one refining, control the temperature of the refining furnace at 1600-1700 degrees Celsius, blow and stir for 20-30 minutes, then raise the temperature of the refining ...
PUM

Abstract
Description
Claims
Application Information

- Generate Ideas
- Intellectual Property
- Life Sciences
- Materials
- Tech Scout
- Unparalleled Data Quality
- Higher Quality Content
- 60% Fewer Hallucinations
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com