CN203462221U

CN203462221U - High-tensile steel wire cord for tubeless all-steel truck radical tire

Info

Publication number: CN203462221U
Application number: CN201320536455.6U
Authority: CN
Inventors: 杭友明; 胡自明; 王双涛; 刘湘慧
Original assignee: Jiangsu Xingda Steel Tyre Cord Co Ltd
Current assignee: Jiangsu Xingda Steel Tyre Cord Co Ltd
Priority date: 2013-08-30
Filing date: 2013-08-30
Publication date: 2014-03-05
Anticipated expiration: 2023-08-30

Abstract

The utility model discloses a high-tensile steel wire cord for a tubeless all-steel truck radical tire. The high-tensile steel wire cord is formed by entwisting steel wires. The high-tensile steel wire cord is once formed by entwisting twelve steel wires according to the same entwisting direction and entwisting interval; nine outer-layer filaments are spirally wound on the peripheries of three inner-layer filaments; the filaments are in linear contact with each other; and the diameters of the outer-layer filaments are less than the diameters of the inner-layer filaments. The high-tensile steel wire cord is high in strength, excellent in seeping performance, strong in corrosion resistance and capable of reducing tire weight and saving manufacturing cost of the tire.

Description

Tubeless all-steel load-bearing radial tire carcass high tenacity steel cord

Technical field

The utility model relates to meridian tyre body all-steel cord, relates in particular to a kind of low-level tubeless all-steel load-bearing radial tire carcass all-steel cord that adopts high-tensile steel wires to produce.

Background technology

The selection of all-steel load-bearing radial tire body cord is except considering carcass strength, also will consider that sidewall is born repeatedly to subdue distortion.Therefore, body cord should have higher Fracture Force, fatigue performance and anti-wear performance.3+9 * 0.22+0.15 all-steel cord general inclined to one side use in low-level tubeless all-steel load-bearing radial tire carcass at present, low-level tubeless tyre is meeting under the prerequisite of security performance, can select high strength, intensive all-steel cord simple in structure, with improve body cord fatigue durability, reduce production costs simultaneously.

Summary of the invention

The purpose of this utility model is to overcome above-mentioned deficiency, provides that a kind of intensity is high, strike-through performance is good, corrosion resistance ability is strong, can alleviate tire weight, save the tubeless all-steel load-bearing radial tire carcass high tenacity steel cord of the manufacturing cost of tire.

The utility model is achieved by the following technical solution:

Tubeless all-steel load-bearing radial tire carcass high tenacity steel cord, by steel wire, compiled to twist with the fingers and form, it by 12 steel wires by identical sth. made by twisting to forming with lay pitch one-shot forming twisting, forming nine outer single thread spirals is wound on around three internal layer monofilament, between monofilament, be line contact, the diameter of described outer monofilament is less than the diameter of internal layer monofilament.

The sth. made by twisting of 12 described steel wires is to being S sth. made by twisting, and the lay pitch is 12.5mm.

The diameter of described outer monofilament is 0.20mm, and the diameter of internal layer monofilament is 0.22mm.

The utility model compared with prior art has following beneficial effect:

(1) without twining silk outward, can avoid the outer wearing and tearing of silk to outer all-steel cord that twine, can reduce cord procedure of processing simultaneously;

(2) intensive all-steel cord, by one group of monofilament by identical sth. made by twisting to forming with lay pitch one-shot forming twisting, manufacturing technique is simple, production cost is low, is line contact between monofilament, contact area is large, contact is little, wear-out failure is less mutually;

(3) outer filament diameter is less than internal layer monofilament, and between monofilament, gap is relatively large, and sizing material permeance property is good;

(4) filament strength is high, when diameter is identical, adopts high strength monofilament can make its tensile strength improve 15% left and right, and the bend loading of all-steel cord, anti-impact force and fatigue performance be corresponding raising also;

(5) filament diameter slightly reduces, and intensity slightly rises, and therefore linear density decreased in the situation that guaranteeing carcass intensity, can reduce all-steel cord consumption, thereby reach the light-weighted object of tire.

Accompanying drawing explanation

Fig. 1 is the section structure schematic diagram of the utility model embodiment.

Sequence number in figure: 1, outer monofilament, 2, internal layer monofilament.

The specific embodiment

Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.

Shown in Fig. 1, a kind of tubeless all-steel load-bearing radial tire of the utility model carcass high tenacity steel cord, by steel wire, compiled to twist with the fingers and form, it by 12 steel wires by identical sth. made by twisting to forming with lay pitch one-shot forming twisting, form nine outer monofilament 1 and be wound in a spiral in around three internal layer monofilament 2, between monofilament, be line contact, the sth. made by twisting of 12 described steel wires is to twisting with the fingers for S, the lay pitch is 12.5mm, and the diameter of described outer monofilament 1 is 0.20mm, and the diameter of internal layer monofilament 2 is 0.22mm.

The performance indications contrast of the utility model and 3+9 * 0.22+0.15 all-steel cord is in Table 1.

Table 1

Project	The utility model	3+9×0.22+0.15
			Cord diameter/mm	0.85	1.17
Filament diameter/mm	0.22/0.20	0.22
			The lay pitch/mm	12.5/12.5	6.3/12.5/3.5
Sth. made by twisting to	S/S	S/S/Z
			Line density/(g.m-1)	3.17	3.85
Fracture Force/N	≥1220	≥1210

The utility model (3 * 0.22/9 * 0.20HT) is twisted in the same way for monofilament, and without twining silk outward, between monofilament, corrosion is lighter; Cord diameter is little, can reduce wirecord fabric calendering thickness; Fracture Force and line density are less, are guaranteeing under the constant prerequisite of carcass intensity and safety multiple, can increase body cord calendering density, reduce tire quality; The utility model (3 * 0.22/9 * 0.20HT) coiling length (BS40/BS60) is larger, can reduce the loss of wirecord fabric in calendering and severing process, improve tire production efficiency, reduce production costs, the utility model (3 * 0.22/9 * 0.20HT) is as shown in table 2 with the contrast of 3+9 * 0.22+0.15 steel cord tyre cost.

Table 2

Project	The utility model	3+9×0.22+0.15
			Ingot length/m	7000	4000
Cord rigidity value	76	100
			Cord density/[root. (10cm)-1]	60	60
All-steel cord spacing/mm in cord	0.83	0.51
			Calendering cord thickness/mm	1.7	2.0
Cord volume index	82	100
			Rubber material using quantity index	83	100
Cord performance figure	82	100

Because the utility model all-steel cord diameter reduces, between cord, sizing material increases, and without twining silk outward, cord rigidity reduces, and when tire building joint and anti-package, efficiency improves.Carcass adopts after 3 * 0.22/9 * 0.20HT all-steel cord, and finished tire pressure wears intensity and endurance quality all improves.

Use 3 * 0.22/9 * 0.20HT all-steel cord, ingot is long to be strengthened, and can improve calendering production efficiency, reduces waste material; Carcass pliability is strengthened, and improve fatigue life; Between all-steel cord, glue amount increases, and bonding strength improves, and has reduced the frictional heat between all-steel cord; After production in enormous quantities, cord diameter and cord calendering thickness reduce, and can reduce production costs.

3 * 0.22/9 * 0.20HT all-steel cord is a kind of high strength, wear-resistingly undermines the new construction all-steel cord that fatigue performance is good, have with twist with the fingers to, without outside twine silk and the little design feature of cord diameter, production technology is simple, with its alternative 3+9 * 0.22+0.15 all-steel cord, be used for low-level tubeless all-steel load-bearing radial tire carcass, can improve tyres durable performance, can reduce production costs simultaneously.

Embodiment is just for the ease of understanding the technical solution of the utility model; do not form the restriction to the utility model protection domain; every interior any simple modification, equivalent variations and modification of perhaps according to technical spirit of the present utility model, above scheme being done that does not depart from technical solutions of the utility model, within all still belonging to the utility model protection domain.

Claims

1. tubeless all-steel load-bearing radial tire carcass high tenacity steel cord, by steel wire, compiled to twist with the fingers and form, it is characterized in that: it by 12 steel wires by identical sth. made by twisting to forming with lay pitch one-shot forming twisting, form nine outer monofilament be (1) wound in a spiral in three internal layer monofilament (2) around, between monofilament, be line contact, described outer monofilament diameter is (1) less than internal layer monofilament diameter (2).

2. tubeless all-steel load-bearing radial tire carcass high tenacity steel cord according to claim 1, is characterized in that: the sth. made by twisting of 12 described steel wires is to being S sth. made by twisting, and the lay pitch is 12.5mm.

3. tubeless all-steel load-bearing radial tire carcass high tenacity steel cord according to claim 1 and 2, is characterized in that: described outer monofilament diameter is (1) 0.20mm, and internal layer monofilament diameter is (2) 0.22mm.