CN204898421U

CN204898421U - Steel wire cord

Info

Publication number: CN204898421U
Application number: CN201420667195.0U
Authority: CN
Inventors: 严华; 张忠明; 姚凤刚; 徐龙
Original assignee: ZHANGJIAGANG JUNMA STELL CORD CO Ltd
Current assignee: ZHANGJIAGANG JUNMA STELL CORD CO Ltd
Priority date: 2014-11-11
Filing date: 2014-11-11
Publication date: 2015-12-23
Anticipated expiration: 2024-11-11

Abstract

The utility model relates to a steel wire cord technical field, one kind concretely relates to adopt the steel wire cord that the load radial tyre matrix of high strength steel silk production used. It is once compiled to twist with the fingers by two wire -core lines and five outer monofilament and forms, and outer monofilament twines around the wire -core line, is the line contact between wire -core line and the outer monofilament. The utility model discloses load radial tyre steel wire cord for the matrix, the rupture pull force is big, has improved this steel wire cord's fatigue resistance and load performance, consequently under the circumstances of guaranteeing matrix intensity, can reduce the steel wire cord quantity, reduce cost.

Description

All-steel cord

Technical field

The utility model relates to all-steel cord technical field, is specifically related to a kind of all-steel cord that can be used as load radial carcass adopting high-tensile steel wires to produce.

Background technology

All-steel cord is the main framework material of all-steel radial tyre, and its quality accounts for about 20% of tire gross mass, is vital on the impact of tire quality.The selection of all steel load radial carcass all-steel cord, except consideration intensity, also will be considered that sidewall is born and repeatedly subdue distortion.Therefore, carcass cord cord should have higher Fracture Force, fatigue performance and anti-wear performance.Adopt 3+9+15*0.175+0.15NT all-steel cord to make carcass in prior art, its all-steel cord need divide four steps to produce, complex manufacturing, core lay length is little, because heart yearn is that S twists with the fingers, outer wrapping wire is again Z sth. made by twisting, outward around being again S sth. made by twisting, make between monofilament, to form " point " contact, fatigue behaviour and lifting capacity low, due to four step rule produce, the lay pitch is little again, production efficiency is low, and production cost is high.

Utility model content

The utility model object is the all-steel cord providing the high and low cost of a kind of production efficiency.

For solving the problem, the technical scheme that the utility model adopts is as follows: it is once compiled sth. made by twisting by two wire cored wires and five outer monofilament and forms, outer monofilament is wrapped in around wire cored wire, in linear contact lay between wire cored wire and outer monofilament, five outer monofilament are closely connected, and form cross section jaggy, side.

Preferably, described wire cored wire and the sth. made by twisting of outer monofilament are to identical.

Preferably, the sth. made by twisting of described wire cored wire and outer monofilament is twisted with the fingers to being S.

Preferably, described wire cored wire is identical with the lay pitch of outer monofilament.

Preferably, the lay pitch of described wire cored wire and outer monofilament is 16mm.

Preferably, the diameter of described outer monofilament is greater than the diameter of wire cored wire.

Preferably, the diameter of described outer monofilament is 0.35mm, and the diameter of wire cored wire is 0.25mm.

Preferably, the phosphorus content of described wire cored wire is identical with the phosphorus content of outer monofilament.

Preferably, the phosphorus content of described wire cored wire and outer monofilament is 0.90 ~ 0.92wt%.

After adopting technique scheme, the utility model has the following advantages:

(1) all-steel cord of the present utility model, outer monofilament volume is twisted with the fingers on wire cored wire and wire cored wire compiles the sth. made by twisting of sth. made by twisting mutually to being S sth. made by twisting, the lay pitch is 16mm, adopt the identical lay pitch and twist with the fingers to production technology, one-shot forming can be ensured, avoid the defect of the complex manufacturing that the different lay pitch and the too small lay pitch are brought, simplify production technology, enhance productivity;

(2) all-steel cord of the present utility model, rupture pull force can reach 1800N, improves fatigue performance and the load carrying behaviour of this all-steel cord, therefore when ensureing carcass strength, all-steel cord consumption can be reduced, reduce costs, increase the service life.

Accompanying drawing explanation

Fig. 1 is the schematic cross-section of all-steel cord of the present utility model.

Wherein: 1, wire cored wire, 2, outer monofilament.

Detailed description of the invention

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

Embodiment 1

As shown in Figure 1, be all-steel cord of the present utility model, it is once compiled sth. made by twisting by two wire cored wires 1 and five outer monofilament 2 and forms, and outer monofilament 2 is wrapped in wire cored wire 1 around, in linear contact lay between wire cored wire 1 and outer monofilament 2.

The sth. made by twisting of wire cored wire 1 and outer monofilament 2, to identical, be S and twist with the fingers.

Wire cored wire 1 is identical with the lay pitch of outer monofilament 2, and the lay pitch is 16mm.

The diameter of outer monofilament 2 is greater than the diameter of wire cored wire 1.Wherein, the diameter of outer monofilament 2 is 0.35mm, and the diameter of wire cored wire 1 is 0.25mm.

The phosphorus content of wire cored wire 1, outer monofilament 2 is identical, and phosphorus content is 0.90wt%.

Embodiment 2

In the present embodiment, be with the difference of embodiment 1, the phosphorus content of wire cored wire 1, outer monofilament 2 is 0.91wt%.

Embodiment 3

In the present embodiment, be with the difference of embodiment 1, the phosphorus content of wire cored wire 1, outer monofilament 2 is 0.92wt%.

Be that 3+9+15*0.175+0.15NT all-steel cord contrasts by the 2*0.25/5*0.35ST all-steel cord of embodiment 1-3 gained and existing model, correction data is in table 1:

Table 1 all-steel cord performance test result

As shown in Table 1, the Fracture Force of all-steel cord of the present utility model reaches about 1800N, compares 3+9+15*0.175+0.15NT all-steel cord, and Fracture Force increases, and lifting capacity is strong, meets the Fracture Force requirement of carcass all-steel cord.When ensureing carcass intensity and safety coefficient is constant, the use amount of all-steel cord on average reduces 6%, decreases the use amount of all-steel cord, reduces production cost, improves the loading capacity of tire, energy-saving material-saving.

All-steel cord of the present utility model, the diameter of whole all-steel cord and density are all little than 3+9+15*0.175+0.15NT all-steel cord, can thinning calendering cord thickness, reduce calendering sizing compound consumption, thus reach the light-weighted object of tire, reduce tire drag, improve tire wear, extend the service life of tire.

All-steel cord phosphorus content of the present utility model is the 0.90-0.92wt% of general knowledge known in this field, is unimach silk cord, can effectively improves carcass security performance, also can reduce the consumption of steel cord in tire.

All-steel cord of the present utility model adopts the lay pitch to be the production technology of 16mm, the sth. made by twisting that outer monofilament 2 volume is twisted with the fingers on wire cored wire 1 and the mutual volume of wire cored wire 1 is twisted with the fingers is to being S sth. made by twisting, adopt the identical lay pitch and twist with the fingers to production technology, one-shot forming can be ensured, avoid the defect of the complex manufacturing that the different lay pitch and the little lay pitch are brought, simplify production technology, enhance productivity, reduce production cost.

2*0.25/5*0.35ST all-steel cord of the present utility model is a kind of high strength, wear-resistingly undermines the good new construction all-steel cord of fatigue performance, in linear contact lay between wire cored wire 1 and outer monofilament 2, contact area is large, and contact is little, mutual wear-out failure is less, improves tyre-e/or performance.

To one skilled in the art, according to technical scheme described above and design, other various corresponding change and deformation can be made, and all these change and deformation all should belong within the protection domain of the utility model claim.

Claims

1. an all-steel cord, it is characterized in that: it is once compiled sth. made by twisting by two wire cored wires (1) and five outer monofilament (2) and forms, outer monofilament (2) is wrapped in wire cored wire (1) around, in linear contact lay between wire cored wire (1) and outer monofilament (2), five outer monofilament (2) are closely connected, and form cross section jaggy, side.

2. all-steel cord according to claim 1, is characterized in that: the sth. made by twisting of wire cored wire (1) and outer monofilament (2) is to identical.

3. all-steel cord according to claim 2, is characterized in that: wire cored wire (1) is twisted with the fingers to being S with the sth. made by twisting of outer monofilament (2).

4. all-steel cord according to claim 1, is characterized in that: wire cored wire (1) is identical with the lay pitch of outer monofilament (2).

5. all-steel cord according to claim 4, is characterized in that: wire cored wire (1) is 16mm with the lay pitch of outer monofilament (2).

6. all-steel cord according to claim 1, is characterized in that: the diameter of outer monofilament (2) is greater than the diameter of wire cored wire (1).

7. all-steel cord according to claim 6, is characterized in that: the diameter of outer monofilament (2) is 0.35mm, and the diameter of wire cored wire (1) is 0.25mm.

8. the all-steel cord according to any one of claim 1-7, is characterized in that: the phosphorus content of wire cored wire (1) is identical with the phosphorus content of outer monofilament (2).

9. all-steel cord according to claim 8, is characterized in that: wire cored wire (1) is 0.90 ~ 0.92wt% with the phosphorus content of outer monofilament (2).