The production process and its features of piercing plug by precision hot-die-forging are detailed.
本文介绍了精密热模锻穿孔顶头的生产工艺及工艺特点。
The Mo alloy inlaid piercing plug is especially suitable for piercing of low alloy pipes and high pressure boiler pipes.
镶嵌式钼合金穿孔顶头尤其适用于低合金钢及合金高压锅炉管的穿孔。
The results show that RE-Al alloying can improve the hardness, the strength and the oxide film density of the piercing plug.
研究结果表明，稀土铝合金化可提高材料的硬度、强度及氧化膜的致密度。
Tests are made with three different piercing plug cone shapes to identify shell gauge changes during secondary piercing process.
采用三种不同穿轧锥形状的顶头，通过二次穿孔试验研究了毛管壁厚变化。
The causes on wrinkle occurrence on the working cone of piercing plug are analysed in detail, and the measures to prevent wrinkle occurrence are put forward.
详细地分析了穿孔顶头工作锥起皱的原因，提出了抑制顶头工作锥起皱的工艺措施。
The paper studies squeezed cap of piercing plugs nose, failure mechanism of melting, influence factor and the process measure of lengthening the service life of plug.
研究了穿孔顶头鼻部压堆戴帽和熔化的失效机制，影响因素，提出了延长顶头使用寿命的工艺措施。
It is proposed to get the piercing plug sprayed with a plasma coating in a bid to enhance its surface properties, and thus prolong its service life, and cut down the operation costs as well.
提出采用在顶头上喷涂等离子涂层的方法来提高穿孔顶头表面性能，从而提高其使用寿命，降低生产成本。
This review focuses on various aspects of piercing plug surface oxide film, including formation, compose, property, effect, transformation in the piercing course and the influence of plug's life.
概述了穿孔顶头表面氧化膜的形成、结构、性质、作用，在穿孔过程中的变化及其对顶头使用寿命的影响。
The piercing process of seamless steel tube is a hot working process, the distribution of plug temperature is very important to its service life.
无缝钢管的穿孔过程是一个热加工过程，顶头的温度分布对于其寿命至关重要。
Adjust the width of box plus locking handle with slide, adjust the width of face punching plug - chip regulator is used to ensure the piercing has always been at the center position.
盒体宽度的调节采用滑槽加锁紧手柄，冲孔面的宽度调节则采用塞片调节，保证冲孔始终在中心位。
Plug is one of the key deformation tools in cross piercing. Its function is turning a solid bar into a hollow bloom.
顶头是斜轧穿孔主要的变形工具之一，其作用是将实心管坯穿轧成一定壁厚的空心毛管。
With face value, there is rustle as normal, there is ear-piercing sound of Office for the plug.
用耳听，有沙沙声为正常，有刺耳声为堵塞处。
Steel grades capable for piercing, shell sizes, inside and outside surface quality, wall thickness accuracy and conditions of plug state in use are also described.
对可穿钢种、荒管规格、内外表面质量、壁厚精度以及顶头状况进行了介绍。
Steel grades capable for piercing, shell sizes, inside and outside surface quality, wall thickness accuracy and conditions of plug state in use are also described.
对可穿钢种、荒管规格、内外表面质量、壁厚精度以及顶头状况进行了介绍。
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