Manufacturing method of semi-steel engineering tire

Abstract

The invention relates to a manufacturing method of a semi-steel engineering tire. The manufacturing method includes the steps of primary forming, secondary forming and vulcanizing. Primary forming specifically includes the following steps of (1) nylon rubber strip preparing and tire body forming, (2) toe opening steel wire ring forming, (3) toe opening steel wire ring bucking and rubber coating, and (4) shoulder wedge fitting. Secondary forming specifically comprises the following steps of (5) gas-tight layer fitting, (6) belted layer fitting, (7) tread fitting, and (8) sidewall fitting. The manufacturing method overcomes the defects of poor heat dissipation, poor puncture resistance and poor abrasion resistance caused by the fact that all skeleton materials of a bias tire are nylon threads and the defects of thin sidewall prone to being scratched, high cost and expensive price caused by the fact that all skeleton materials of an all steel radial tire are steel wires; the effects thatsidewalls of the tire are thick, a tire body is high in strength, scratching preventing is achieved, heat dissipation of the tread is good, and puncture resistance and abrasion resistance are achievedare achieved; and in addition, a toe opening steel wire ring is made of graphene steel wires, a belted layer is a graphene steel wire belted layer, so that high strength, fast heat conduction and lowweight are achieved.

Description

technical field

[0001] The invention relates to the technical field of tire production, in particular to a method for manufacturing semi-steel engineering tires. Background technique

[0002] There are currently two types of engineering tires on the market: bias engineering tires and radial engineering tires. The skeleton material of bias tires is nylon thread. The advantages of the product are: thick carcass, scratch resistance, and cheap price. Well, puncture resistance and chewing resistance are not as good as radial engineering tires; the skeleton material of radial tires is steel wire, and the product advantages are: good heat dissipation, thin sidewalls, good comfort, fuel economy, and good durability; the disadvantages are: engineering tires are mainly used in For construction site operations, the sidewalls are thin and easy to be scratched, and the cost is high, and the price is expensive, especially when working on concrete roads, gravel roads in mountainous areas, ...