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1, Moreover, the mathematic model of the piercer rolling pressure is analyzed by the writer.

2, The H13 steel piercer point alloyed by Re-Al is studied.

3, The armor piercer sends the strength, Is the typical wadding fist sends the strength method.

4, One way to enhance the working life of piercer point by means of Re-Al alloying was offered and its feasibility was proved in this paper.

5, PIERCER : Second stage of operation in the cage department; removes the bottom stock from the blank to the approximate inner diameter of the finished cage.

6, Moreover, consulting first an expert piercer or a personal doctor is always reasonable as every one is different.

7, Four types of piercer plug initial failures relating to its structural dimensions are discussed, the causes are analyzed, and countermeasures put forward.

8, A reputable piercer will ask for parental consent before allowing someone under the age of 18 years to have a piercing.

9, This article introduces the development of three water-soluble lubricants for piercer guide disc and their effectiveness proved by industrial practice.

10, It is pointed out that like the barrel type piercer process, the control of the cone type piercer roll speed is also very important.

11, The risks of self-piercing are high so it is always best to visit a professional piercer .

12, The reason for rolling block in seamless tube tow - roll cone piercer is analyzed. A good result is gotten with some factual improving measures.

13, Two years' practice shows that the upgraded drum locking device of a piercer can fully meet the requirements of a twice piercing process and is worth wide application.

14, The basic process of three-dimensional parameterized design for the piercer guide board series has been described in this article as well as its necessity and superiority with CAD.

15, It has been proven by trial commercial production that With the piercer plug designed by means of the said new method,(http://sentencedict.com/piercer.html) much higher radial wall thickness accuracy is available.

16, The computation of the roll opening is the basis of tool design and parameters adjustment of skew rolling piercer.

17, The major quality defect as occurring in the cone type piercer process with highdeforming steel and alloy steel is the lamination.

18, The failure mechanism and service status quo of hot piercer point in seamless steel tube were analyzed and its failure was mainly caused by piercer point collapsing nose, sticking steel and cracking.

19, It can be used not only for pass design and off line analysis but also for guiding in the adjustment of piercer.