阅读说明：本技术 一种全钢载重子午线轮胎胎体 (A kind of all-steel load-bearing radial tire carcass ) 是由 朱典武 于 2019-09-18 设计创作，主要内容包括：本发明涉及汽车轮胎技术领域,尤其是一种全钢载重子午线轮胎胎体,包括钢丝胎体,所述钢丝胎体包括钢丝帘线和橡胶部,所述钢丝帘线两边端点均包裹有包边胶片,所述包边胶片是一个截面为“U”型的结构,所述包边胶片将钢丝帘线的反包端点完全包住,所述钢丝帘线通过包边胶片与橡胶部紧密黏合,所述钢丝帘线下侧铺设有钢丝胎圈包布,所述钢丝胎圈包布下侧铺设有尼龙胎圈包布,该全钢载重子午轮胎胎体耐磨性能好,解决了全钢载重子午线轮胎体帘布反包端点的胎体钢丝裁切面与橡胶之间的粘合性能不良的缺陷,提高长途轮胎的胎圈耐久使用寿命,为轮胎的长期里程寿命提供保障。(The present invention relates to automobile tire technical fields, especially a kind of all-steel load-bearing radial tire carcass, including steel wire carcass, the steel wire carcass includes all-steel cord and rubber section, all-steel cord both sides endpoint is enclosed with bound edge film, the bound edge film is the structure that a section is U-typed, the bound edge film encases the anti-package endpoint of all-steel cord completely, the all-steel cord is closely binded by bound edge film with rubber section, wire bead infantees is equipped on the downside of the all-steel cord, nylon chafer is equipped on the downside of the wire bead infantees, the all steel load radial carcass wear-resisting property is good, the carcass cord for solving all-steel load-bearing radial tire body cord anti-package endpoint cuts the undesirable defect of bond properties between face and rubber, improve the durable service life of tyre bead of long-distance tire, for the long-term of tire The mileage service life provides safeguard.)

1. a kind of all-steel load-bearing radial tire carcass, including steel wire carcass (2), which is characterized in that steel wire carcass (2) packet All-steel cord and rubber section are included, all-steel cord both sides endpoint is enclosed with bound edge film (1), and the bound edge film (1) is One section is the structure of U-typed, and the bound edge film (1) encases the anti-package endpoint of all-steel cord completely, the steel wire curtain Line is closely binded by bound edge film (1) with rubber section, is equipped with wire bead infantees (3) on the downside of the all-steel cord, described Nylon chafer (4) are equipped on the downside of wire bead infantees (3).

2. a kind of all-steel load-bearing radial tire carcass according to claim 1, which is characterized in that the wire bead packet Cloth (3) is consistent with the laying radian of the nylon chafer (4).

3. a kind of all-steel load-bearing radial tire carcass according to claim 1, which is characterized in that the bound edge film (1) height that all-steel cord both sides endpoint is wrapped be 10-18mm, and bound edge film 1 with a thickness of 0.4-0.8mm.

4. a kind of all-steel load-bearing radial tire carcass according to claim 1, which is characterized in that the all-steel cord by Core wire steel wire, middle layer steel wire and cover wire volume are twisted, and the core wire steel wire number is three, three core wires steel wire week It encloses to compile to twist with nine middle layer steel wires and be connected, compile twirl with 15 cover wires around nine wire of intermediate layer and be connected.

5. a kind of all-steel load-bearing radial tire carcass according to claim 4, which is characterized in that core wire steel wire, middle layer Steel wire and cover wire have the same diameter, and diameter range is 0.175-0.245mm.

6. a kind of all-steel load-bearing radial tire carcass according to claim 5, which is characterized in that the twirl of core wire steel wire It is identical with the orientation of cover wire to, the orientation of middle layer steel wire, core wire steel wire compiles the lay pitch twisted, middle layer steel wire compiles the lay pitch twisted and It is identical that cover wire compiles the lay pitch twisted.

7. the preparation method of bound edge film according to claim 1, which comprises the steps of:

2~5 parts of polytetrafluoroethylene (PTFE) wax powder and graphene oxide 2~3 are put into 10~20 parts of water by S1 in parts by weight, 1~4 part of silica, 0.8~2.5 part of ethylene-methacrylic acid copolymer, 0.1~0.4 part of microcrystalline cellulose are added, is stirred Obtain mixture A；

0.8~1.5 part of coumarone indene resin, cobalt salt 0.05~0.2 is added in parts by weight in S2 while stirring in mixture A Part, 3~6 parts of stannous chloride, 1~4 part of benzotriazole, 0.5~1.5 part of succinic acid, stir to get mixture B；

S3, in parts by weight, will in mixture B be added 10~20 parts of deionized water, stir to get mixture C, to mixture C into Row heating, keeps temperature to be no more than 45 DEG C, and at the uniform velocity stirring is until be completely dissolved.

Technical field

The present invention relates to automobile tire technical field more particularly to a kind of all-steel load-bearing radial tire carcasses.

Background technique

As the fast development of National Highway and progress, the requirement and technical characteristic of automobile tire are also quick Transition and upgrade is to long-distance permanent seal cooling.In recent years, the structure technology of domestic all-steel radial tyre also has very big innovation and development, But there are also to be hoisted for the endurance quality of long-distance tire bead.The long-distance tyre bead anti-fatigue performance of all-steel radial tyre is main Concentrate on the raising of the bonding fatigue behaviour between the steel wire and sizing material of steel wire carcass anti-package endpoint, present all-steel radial tyre Structure design aspect not can guarantee: first, rail tyre body end point cuts face vulnerable to moisture, oxygen in production process The pollution of the pollution sources such as gas, greasy dirt and dust；Second, steel wire carcass cuts face surface because without copper plate, steel and rubber In sulphur atom vulcanization reaction can not occur, so as to cause steel wire carcass anti-package end steel wire cut it is viscous between face and rubber Conjunction fatigue life is unable to satisfy the requirement of long-distance transport.

Summary of the invention

The purpose of the present invention is to solve the service life for the long-distance tyre bead that tire exists in the prior art it is not high lack Point, and a kind of all-steel load-bearing radial tire carcass proposed.

To achieve the goals above, present invention employs following technical solutions:

A kind of all-steel load-bearing radial tire carcass, including steel wire carcass are designed, the steel wire carcass includes all-steel cord And rubber section, all-steel cord both sides endpoint are enclosed with bound edge film, the bound edge film is that a section is U-typed Structure, the bound edge film encase the anti-package endpoint of all-steel cord completely, and the all-steel cord passes through bound edge film and rubber Portion is closely binded, and wire bead infantees is equipped on the downside of the all-steel cord, is equipped with nylon on the downside of the wire bead infantees Chafer.

Preferably, the wire bead infantees is consistent with the laying radian of the nylon chafer.

Preferably, the height that the bound edge film wraps all-steel cord both sides endpoint is 10-18mm, and edge-wrapping adhesive Piece 1 with a thickness of 0.4-0.8mm.

Preferably, the all-steel cord is twisted by core wire steel wire, middle layer steel wire and cover wire volume, the core wire steel wire Number is three, compiles twirl with nine middle layer steel wires around three core wire steel wires and is connected, around nine wire of intermediate layer It compiles to twist with 15 cover wires and be connected.

Preferably, core wire steel wire, middle layer steel wire and cover wire have the same diameter, and diameter range is 0.175- 0.245mm。

Preferably, the orientation of core wire steel wire, the orientation of middle layer steel wire are identical with the orientation of cover wire, and core wire steel wire, which is compiled, to be twisted The lay pitch, middle layer steel wire compile twist the lay pitch and cover wire compile twist the lay pitch it is identical.

The present invention also provides a kind of preparation methods of bound edge film, include the following steps:

2~5 parts of polytetrafluoroethylene (PTFE) wax powder and graphene oxide 2~3 are put into 10~20 parts in parts by weight by S1 In water, 1~4 part of silica, 0.8~2.5 part of ethylene-methacrylic acid copolymer, 0.1~0.4 part of microcrystalline cellulose are added, Stir to get mixture A；

S2, in parts by weight, be added while stirring in mixture A 0.8~1.5 part of coumarone indene resin, cobalt salt 0.05~ 0.2 part, 3~6 parts of stannous chloride, 1~4 part of benzotriazole, 0.5~1.5 part of succinic acid, stir to get mixture B；

S3 will be added 10~20 parts of deionized water, mixture C stirred to get, to mixing in parts by weight in mixture B Object C is heated, and temperature is kept to be no more than 45 DEG C, and at the uniform velocity stirring is until be completely dissolved.

A kind of all-steel load-bearing radial tire carcass proposed by the present invention, beneficial effect are: steel wire in the carcass Cord anti-package endpoint steel wire carries out edge protection with bound edge film immediately after cutting, can be effectively protected steel wire cut face not by The pollution of the pollution sources such as moisture, oxygen and greasy dirt dust guarantees that steel wire cuts the physical adhesion effect between face and rubber and obtains Expected effect improves the carcass service life of tire, and steel wire is cut face and connect with rubber by the transitional function of bound edge film and is glued Altogether, to realize the promotion of tyre bead endurance life, guarantee demand of the long-distance vehicle to carcass endurance life.

Detailed description of the invention

Fig. 1 is a kind of structural schematic diagram of all-steel load-bearing radial tire carcass proposed by the present invention.

In figure: bound edge film 1, steel wire carcass 2, wire bead infantees 3, nylon chafer 4.

Specific embodiment

Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.