Pre-Checking of Curing Bladder before production

1. Checking Method

The appearance inspection of the tire curing bladder is to inspect the appearance quality of the finished curing bladder (inside and outside) by visual method.

2. Testing frequency

After the finished tire curing bladder is polished, 100% will be put into the warehouse after the appearance inspection is passed, and 10% will be sampled and packaged before leaving the warehouse.

3. Appearance requirements

① The vulcanized capsule has a smooth surface, no impurities, no bubbles, no lack of glue, no cracks, no blisters and no under-sulfur, and the thickness of each part is uniform;

② The rubber edge thickness of the upper and lower die mouths is uniform and does not exceed 0.2mm;

③ The rubber edge of the die mouth should be polished and smooth, and the hand feel should not be concave or convex; the form of the vulcanized bladder exhaust line must meet the design and processing requirements, without broken lines, round corners, and lack of glue;

④ The height of the capsule clamping edge and the depth of the lack of glue shall not be greater than 1mm, and the length shall not be greater than 2mm.

All waste products that do not meet the requirements of the above appearance standards shall be disposed of.

 

1.检测方法

轮胎硫化胶囊外观检验，通过目视的方法检验成品硫化胶囊（里、外）外观质量情况。

2. 检测频率

成品轮胎硫化胶囊打磨后100%外观检验合格后入库，出库前抽检10%再进行包装。

3. 外观要求

① 硫化好的胶囊表面光滑，无杂质、无气泡、无缺胶、无裂口、无砂眼和无欠硫，各部位厚薄均匀；

② 上下模口胶边厚度均匀且不超过0.2mm；

③ 模口胶边要打磨平整、手感不能凹陷和凸起； 硫化好的胶囊排气线形式必须符合设计和加工要求，无断线、无圆角和无缺胶；

④ 胶囊夹缘高度圆角和缺胶深度不得大于1mm，长度不得大于2mm。

不符合以上外观标准要求的全部作废品处理。