Abrasion-detection type conveyor belt and manufacturing method thereof

Patent metadata

Field	Value
Publication number	US-9540182-B2
Application number	US-201514936508-A
Country	US
Kind code	B2
Filing date	Nov 9, 2015
Priority date	Jun 9, 2015
Publication date	Jan 10, 2017
Grant date	Jan 10, 2017

Abstract

Provided are an abrasion-detection type conveyor belt and a manufacturing method thereof. A polymer composition ratio of is set to 40-60% of styrene-butadiene rubber (SBR) and 60-40% of natural rubber (NR), and an adhesive strength between a cover rubber layer and an abrasion-detection color layer is set to 13 kN/m (33 kgf/inch). As compared to the existing product, material properties of the abrasion-detection color layer are improved to extend the available life of the abrasion detection type conveyor belt. The abrasion-detection type conveyor belt is cost-effective, simplifies a belt line, and reduces an inspection time.

First claim

What is claimed is:

1. An abrasion-detection type conveyor belt comprising:
a cover rubber layer including a top cover rubber layer, an intermediate cover rubber layer, and a bottom cover rubber layer;
carcasses inserted into the cover rubber layer, the carcasses having wavelike shapes; and
an abrasion-detection-color layer disposed between the intermediate cover rubber layer and the top cover rubber layer,
wherein the abrasion-detection color layer is formed by setting a polymer composition ratio to 40%-60% of styrene-butadiene (SBR) and 60%-40% of natural rubber (NR).

2. The abrasion-detection type conveyor belt according to claim 1 , wherein an adhesive strength between the cover rubber layer and the abrasion-detection color layer is set to be more than or equal to 13 kN/m (33 kgf/inch).

3. The abrasion-detection type conveyor belt according to claim 1 , wherein the abrasion-detection color layer has at least one of material properties selected from a hardness (Shore-A) of 59 to 61, an elongation rate of 610% to 700%, a tensile strength of 13.5 MPa to 14.0 MPa, a specific gravity of 1.36 g/cm 3 to 1.46 g/cm 3 , and an abrasion amount of 300 mm 3 to 320 mm 3 .

Assignees

• Hwaseung Exwill Co Ltd
• Hyundai Steel Co

Inventors

• Kim Jong Woo
• Lee Un Jung
• Lim Dae Myung
• Bae Sang Su
• Seo Jeong Hyeon
• Lee Sang Bong
• Song Jai Joon
• Heo Min
• Jeong Tae Min
• Shin Seung Young

Classifications

• B65G43/02 Primary

  detecting dangerous physical condition of load carriers, e.g. for interrupting the drive in the event of overheating · CPC title

• B65G15/34

  with reinforcing layers, e.g. of fabric · CPC title

• B32B25/00

  Layered products comprising {a layer of} natural or synthetic rubber {(fibrous or filamentary layer made of a natural or synthetic rubber B32B5/02; particulate layer made of a natural or synthetic rubber B32B5/16; foamed layer made of a natural or synthetic rubber B32B5/18)} · CPC title

• B65G15/32

  made of rubber or plastics · CPC title

• B32B25/04

  comprising rubber as the main or only constituent of a layer, {which is} next to another layer of {the same or of} a {different material (next to a layer of a particular substance B32B9/043; next to a bituminous or tarry layer B32B11/044; next to a water setting substance layer B32B13/042; next to a metal layer B32B15/06; next to a glass layer B32B17/063; next to a layer formed of natural mineral fibres or particles B32B19/043; next to a wood layer B32B21/045; next to a cellulosic plastic layer B32B23/046)} · CPC title