Page 85 - 《橡塑技术与装备》2023年10期

工艺与设备 罗花娟 等·275/80R22.5 18PR 全钢载重子午线公制轮胎的设计

5 结论
275/80R22.5-18PR 全钢载重子午线公制轮胎的
成品胎外缘尺寸和强度性能均满足国家标准要求，常
规耐久、胎圈耐久、接地印痕达到公司内控标准要求。
轮胎生产过程中工艺稳定，成品胎合格率高于公司指
标。成品胎经市场使用反馈，承载性和耐久性能良好，
综合行驶里程高，客户认可度高，为公司创造了良好
的经济效益和社会效益。

图 3 轮胎接地印痕图

Design of 275/80R22.5 18PR all steel radial truck metric tire

Luo Huajuan, Yang Sikai, Song Qian

(Shaanxi Yanchang Petroleum Group Rubber CO. LTD., Xi'an 710000, Shaanxi, China)
Abstract: This article introduces the structure and construction design of 275/80R22.5 18PR all steel
radial truck tire. Structural design: Outer diameter: 1 014 mm, section width: 288 mm, running surface width:
225 mm, running surface arc height: 8.0 mm, bead fitting diameter: 569.5 mm, bead fitting width: 235 mm,
and horizontal axis position (H1/H2) of the section is 0.984. The tread pattern is composed of four straight
longitudinal and transverse fine grooves, using three unequal pitch designs. The depth of the pattern is 16 mm,
the number of pitch is 54, and the saturation of the pattern is 78.5%. Construction design: The tread adopts a
structure of tire crown rubber, wing rubber, and bottom leather film, the crown adopts a four layer belt layer
structure, and the 1 belt layer adopts a 3 layer belt layer structure × 0.20+6 × 0.35HT steel wire cord, with 2
#
# and 3 belt layers using 4+3 × 0.35ST ultra-high strength steel wire cord, 4 belt layer adopts 5 × 0.35HI high
#
#
elongation steel cord. Fetal body adopts 3 × 0.24/9 × 0.225CCST steel wire cord is formed using Tianjin Saixiang
three drum one-time building machine mechanical drum reverse wrapping, and the optimal vulcanization
conditions are confirmed through vulcanization temperature measurement. The test results show that the outer
edge size and strength performance of the finished tire meet the requirements of national standards, and
the conventional durability, bead durability, and grounding marks meet the requirements of the company's
internal control standards.
Key words: all steel load meridian; metric tires; structural design; construction design
(R-03)

2023 第 49 卷 ·37·
年