厂商 ：安庆市鼎立汽车配件有限公司
安徽 安庆- 主营产品：
- 汽车气门
- 摩托车气门
- 各种汽车气门
内径：12mm
外径：57mm(IN) 53mm(EX)
OEM: 13711-1451A 13715-1013A
二、材质
IN：4CR9SI2MO
EX：21-4N
三、工艺
1、经毛坯精锻成形；
2、高温800℃~1200℃高温处理。
3、进气尾端高频淬火，提高尾端硬度，尾端硬度HRC达48°~55°，降低因尾端断裂而减短使用寿命。
4、表面氮化处理，处理层深0.008mm，氮化着色成灰色，防锈又增加表面硬度
四、包装：中性包装，简易包装。
Total length:170mm
Inside diameter:12mm
outer diameter:57mm（IN) 53mm(EX)
materials:
IN：4CR9SI2MO
EX：21-4N
Technology:
1.Forging blank
2.800 ℃ ~1200 ℃ high temperature treatment
3.The inlet end of high-frequency quenching hardness, improve the tail, tail HRC hardness up to 48 ° ~55 °, reduce end fracture and shorten service life
4.Surface nitridation processing, processing depth 0.008mm, nitriding colored grey, rust and increase the surface hardness
Dingli Automobile Accessories Co., Ltd is specialized in valve manufacturing, sales of specialized precision manufacturing enterprises. Yangtze River is located in Anqing City Wangjiang provincial economic development zone covers an area of 10,000 square meters, more than 200 employees. We survive by quality, innovation and development, science and technology for the purpose of promoting production, the introduction of high-tech talent and the most advanced and complete automated production equipment, testing equipment, has formed Forging - Heat Treatment - Machining - alloy spray - Surface Treatment - Shot Blasting production line; established a strict scientific management system, and in strict accordance with TS16949 specification production.
