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

Elevator rope core with high strength and low elongation performance and preparation method thereof

A high-strength, rope core technology, applied in the field of materials, can solve problems such as broken wires and strands, shortened maintenance cycle, and high manufacturing costs

Pending Publication Date: 2021-04-20
刘文瑞
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But the disadvantage is: due to the low oil content of the rope core (about 3%), broken wires and strands often occur, which increases the maintenance cost of the elevator in use and shortens the maintenance cycle
Moreover, the weight of the steel rope core is too large and the manufacturing cost is too high, which increases the requirements for the configuration of the elevator power system.

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
  • Elevator rope core with high strength and low elongation performance and preparation method thereof
  • Elevator rope core with high strength and low elongation performance and preparation method thereof
  • Elevator rope core with high strength and low elongation performance and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081]This embodiment provides a method of preparing a elevator rope core having high strength, low elongation performance, including the steps of:

[0082](1) Granulation: 6500 g of the product number PPK1708 polypropylene, 1500 g of the product number, PPS1003, PPS1003, PPS1003, a 400 g of a harder, and 50 g of a 50 g of a 50 g of an antioxidant mixed under 60R / min for 30 min, and Squeeze into particulate shape to obtain raw material particles;

[0083](2) Brushed: The raw material fine particles of step (1) were heated to 180 ° C, and the fiberfila was obtained by extrusion, spin, stretching step to obtain fiber;

[0084](3) Healing core: Place the fiber from step (2) in the strawward machine for the binding machine, and the core intermediate;

[0085](4) Immersion oil: Immerse one end of the rope core intermediate of step (3) into the elevator oil tank for immersion oil, and then forms the finished elevator rope core by mechanical transmission.

Embodiment 2

[0087]This embodiment provides a method of preparing a elevator rope core having high strength, low elongation performance, including the steps of:

[0088](1) Genosa: 7500 g of the product number is PPK1708, 2500 g of the product number, a polyethylene of PPS1003, and a 900 g of a harder and 100 g of a 100 g of a 100 g of a 100 g of a 100 g of a 100 g of a 100 g of a hydride agent mixed under 80r / min for 40 min, and Squeeze into particulate shape to obtain raw material particles;

[0089](2) Brushed: The raw material fine particles of step (1) were heated to molten at 240 ° C, and sequentially passed through extrusion, spin, tensile step to obtain fiberfila;

[0090](3) Healing core: Place the fiber from step (2) in the strawward machine for the binding machine, and the core intermediate;

[0091](4) Immersion oil: Immerse one end of the rope core intermediate of step (3) into the elevator oil tank for immersion oil, and then forms the finished elevator rope core by mechanical transmission.

Embodiment 3

[0093]This embodiment provides a method of preparing a elevator rope core having high strength, low elongation performance, including the steps of:

[0094](1) Granulation: 7000 g of the product number is a polypropylene of PPK1708, and the 2000G product number is PPS1003 polyethylene, 650 g of a harder and 75 g of the product number 1010 mixed under 70 r / min, and stirred at 70 r / min. 35min, and Squeeze into particulate shape to obtain raw material particles;

[0095](2) Brushed: The raw material fine particles of step (1) were heated to melt 210 ° C, and sequentially passed through extrusion, spin, tensile step to obtain fiberfila;

[0096](3) Healing core: Place the fiber from step (2) in the strawward machine for the binding machine, and the core intermediate;

[0097](4) Immersion oil: Immerse one end of the rope core intermediate of step (3) into the elevator oil tank for immersion oil, and then forms the finished elevator rope core by mechanical transmission.

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
elongationaaaaaaaaaa
elongationaaaaaaaaaa
elongationaaaaaaaaaa
Login to View More

Abstract

The invention relates to an elevator rope core with high strength and low elongation performance and a preparation method thereof. The elevator rope core with high strength and low elongation performance comprises the following raw materials: polypropylene, polyethylene, a hardening agent and an antioxidant. Compared with a common hemp core rope, the elevator rope core is higher in supporting force, smaller in elongation and higher in elastic modulus value, the oil content is 4-10%, the oil content is between those of a steel core rope and a hemp core rope, more grease is consumed compared with that of a semi-steel core rope and the steel core rope, the maintenance cost is lower, and the maintenance period is longer. The advantages of ultra-low elongation and ultra-high rigid supporting force of the steel core rope are continued, the defects that a steel core is large in self-weight, high in manufacturing process difficulty and short in service life, and wire breaking risks exist are overcome, and meanwhile the defects that a hemp core rope is insufficient in supporting force, uneven in rope core diameter, inconsistent in local linear density and short in service life are overcome. The preparation method is easy to control in process, simple and convenient to operate and beneficial to large-scale production.

Description

Technical field[0001]The present invention belongs to the field of material, and more particularly to an elevator rope core having high strength, low elongation performance and a preparation method thereof.Background technique[0002]It is well known that elevator wire ropes are produced by wire, grease and rope core through many complex processes, and long-term people have always put their focus on steel wire and related manufacturing process (sequentially through the disc, pickling, brushed, Heat treatment, water tank brushed, twisted, binding process), and ignored another core component for the fatigue life of elevator wire rope, namely "rope core" development and research.[0003]Currently, the rope core used in the elevator wire rope is mainly a swim rope core, a semi-steel rope core, and a steel rope core, which is mostly in the rope core.[0004]The advantage of the rope core of the rope is that the oil reservoir is excellent, the support is better, but the disadvantages are also e...

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 Applications(China)
IPC IPC(8): C08L23/12C08L23/06D07B1/06
Inventor 刘文瑞
Owner 刘文瑞