Unlock instant, AI-driven research and patent intelligence for your innovation.

Hot-coated elevator steel wire rope grease and its preparation method

A steel wire rope grease and coating technology, which is applied in the field of grease, can solve the problems of poor film formation, unsafety, and poor metal adhesion, and achieve the effects of improving the friction coefficient, good auxiliary effect, and strong metal adhesion

Active Publication Date: 2018-07-13
PETROCHINA CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, most of the general-purpose steel wire rope grease products on the market have three problems: first, the friction coefficient does not meet the requirements, second, the metal adhesion is poor, and third, there are volatile solvents in the composition, which is not safe
[0004] At present, the prior art about elevator steel wire rope grease has defects in various aspects of its composition: in terms of base oil, it is mainly a mixture of extracted oil, residual essential oil and residual wax paste, and the index of base oil mainly emphasizes kinematic viscosity. Its components and content are stipulated, and with the deepening of crude oil processing, the output of this type of base oil is less and less; in terms of thickeners, polyethylene, polypropylene and their derivatives are mainly used. The molecular weight of the similar thickener is quite different from the average molecular weight of the base oil, which leads to uneven phenomenon in the steel wire rope grease system at room temperature, which makes the film-forming property of the rope grease on the surface of the steel wire rope poor, and does not have the proper protective effect on the steel wire rope. ; In terms of friction agent, the friction coefficient of the current product is difficult to meet the requirements of 0.25, and the quality is not stable in improving the surface friction coefficient of the elevator wire rope, and cannot play the due protection and auxiliary braking effect; in addition, Most of the components of rope grease products contain volatile solvents, which not only have great hidden dangers during use, but also the existence of solvents will seriously affect the formation of oil film on the surface of steel wire rope grease and the uniformity of oil film
The prior art is another example of the steel wire rope grease composition disclosed in CN103484218, which is a thickened system of fatty acid salt, which cannot achieve good film-forming properties; and the lubricating oil composition disclosed in GB2095696, which is a lubricating In the oil system, the added polyolefin increases the viscosity of the product, but it cannot achieve the thickening effect, and still cannot be used as a good elevator steel wire rope grease

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Hot-coated elevator steel wire rope grease and its preparation method
  • Hot-coated elevator steel wire rope grease and its preparation method

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0057] The present invention also provides a preparation method (one-step complete thickening process) of hot-coated elevator wire rope grease, comprising the following steps:

[0058] 1) Add 3-7% microcrystalline wax, 3-10% amide thickener, and 10-20% friction enhancer to 60-83% mineral oil and mix, and the temperature is controlled between 145-150 ℃, and it is still at rest. 0.5~1h;

[0059] 2) Start stirring after the microcrystalline wax is melted, the stirring speed is controlled at 200-300r / min, and the stirring time is not less than 2.5h;

[0060] 3) Cool down to 110~120℃, add 1~8% of rust inhibitor, stir for 1~1.5h, and fill;

[0061] Wherein, the aromatic hydrocarbon content of the mineral oil described in step 1) is between 35% and 85%, and the kinematic viscosity at 100°C is between 30 and 80mm. 2 / s; each percentage in step 1) to step 3) is the mass ratio.

[0062] Wherein, in a preferred embodiment of the method for preparing heat-coated elevator wire rope grea...

Embodiment a

[0072] The present embodiment provides a method for preparing a thermally coated elevator wire rope grease, comprising the following steps (the following percentages are mass ratios):

[0073] 1) Add 3% microcrystalline wax, 3% amide thickener, and 10% friction enhancer to 83% mineral oil in sequence, and mix at a temperature of 145°C for 0.5h;

[0074] 2) After the microcrystalline wax is melted, the stirring is started, the stirring speed is controlled at 200r / min, and the stirring time is 2.5h;

[0075] 3) Cool down to 110°C, add 1% rust inhibitor, stir for 1h, and fill;

[0076] Wherein, the aromatic hydrocarbon content of the mineral oil described in step 1) is 35%, and the kinematic viscosity at 100°C is 30mm 2 / s; the microcrystalline wax is 70# microcrystalline wax; the amide thickener is oleic acid amide; the friction increasing agent is rosin resin; the rust inhibitor is barium sulfonate.

[0077] According to the heat-coated elevator wire rope grease prepared by t...

Embodiment b

[0081] The present embodiment provides a method for preparing a thermally coated elevator wire rope grease, comprising the following steps (the following percentages are mass ratios):

[0082] 1) Add 7% microcrystalline wax, 10% amide thickener, and 20% friction enhancer to 60% mineral oil in sequence, and mix at a temperature of 150°C for 1 hour;

[0083] 2) Start stirring after the microcrystalline wax is melted, the stirring speed is controlled at 300r / min, and the stirring time is 4h;

[0084]3) Cool down to 120°C, add 3% rust inhibitor, stir for 1.5h, and fill;

[0085] Wherein, the aromatic hydrocarbon content of the mineral oil described in step 1) is 85%, and the kinematic viscosity at 100°C is 80mm 2 / s; the microcrystalline wax is 80# microcrystalline wax; the amide thickener is erucamide; the friction enhancer is rosin modified phenolic resin; the rust inhibitor is sulfonic acid sodium.

[0086] According to the heat-coated elevator wire rope grease prepared by t...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
drop melting pointaaaaaaaaaa
melting pointaaaaaaaaaa
softening pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a heat-coating elevator steel wire rope grease and a preparation method thereof. The grease comprises 60-83% of high-viscosity high-aromatic-hydrocarbon-content mineral oil, 3-7% of microcrystalline wax, 3-10% of an amide thickener, 10-20% of a friction enhancing agent, and 1-8% of a rust inhibitor. The heat-coating elevator steel wire rope grease provided by the invention has good film-forming performance, metal surface adhesion force, and friction performance.

Description

technical field [0001] The invention relates to a lubricating grease, in particular to a special lubricating grease for heat-coating elevator wire ropes. Background technique [0002] With the rapid development of the national economy and the accelerated pace of population urbanization, the number of medium and high-rise buildings has increased sharply, and the elevators as the main means of transportation and the supporting facilities and equipment have also developed rapidly. Elevator wire ropes have become the fastest growing in the wire rope industry. and one of the most in-demand products in the market. The running state of the elevator wire rope directly affects the production efficiency of the elevator and the safety factor of the elevator. As the only lubrication and protection product for elevator wire rope, the quality of elevator wire rope grease directly affects the running condition of elevator. [0003] Wire rope grease is a grease that is applied to the surf...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C10M169/00C10M177/00C10N50/10C10N40/32C10N30/06
Inventor 张丽娟刘丽君姜和基李建明周圆张遂心
Owner PETROCHINA CO LTD
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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