焊工用玻璃 的英文怎麼說
中文拼音 [hàngōngyòngbōlí]
焊工用玻璃
英文
large spool-
The enterprise beijing mutual benefithui chemical raw material co., ltd. deals in carbonic acid and electronic industry in addition to formic acid as well as with almond oil
該企業竭誠為貴公司介紹關于塑料焊接、精密力學、機械學、生活用水、工業用水以及晶體玻璃、燧石玻璃和超聲波清潔費用信息，請撥打+ 86 （ 519 ） 5120087 ， 51 。請不要忘記，垂詢電子工業或真空鍍膜。On one hand, the enterprise changzhou kepeida ultrasonic engineering equipment co., ltd. gladly signs your enterprise under the number + 86 ( 519 ) 5120087, 51 pertinent statements and cost information on plastic welding, precision mechanism, industrial water and both on crystal glass and ultrasonic cleaning on the other hand
該企業竭誠為貴公司介紹關于塑料焊接、精密力學、機械學、生活用水、工業用水以及晶體玻璃、燧石玻璃和超聲波清潔費用信息，請撥打+ 86 （ 519 ） 5120087 ， 51 。This article describes a way of special ultrasonic system which monitors thermal stress in seamless welded rails. this monitoring system is a non destructive testing system, which adopts avr mcu and high - precise time chip processing as the core of it, and adopts the critically refracted longitudinal wave as the object of measuring. my studying focuses on the theory of the monitoring system, which will be listed in this arctile : according to the snell theory, the theory of motivating of critically refracted longitudinal wave is described in details, and the finite element software is used to emulate the propagating course. the formulas of calculating the pts of swr are taken from the acoustoelasticity theory, and the calculating the parameters is introduced. according to assemble materials, three kinds of ways of monitoring the pts of swr using critically refracted longitudinal wave are described, which are measuring the sound - time in changeless distance, ultrasonic critical - angle refractomery and frequency spectrum, the first way of ways is used in this experiment system. the factors, which effect the monitoring system, are assaid in some degree based
本文的研究工作重點在無縫焊接鋼軌溫度應力測量系統的理論模塊，包括根據snell原理，研究極限折射縱波的激發機理，並使用有限元軟體ansys進行模擬;根據聲彈性理論以及公式推導出計算無縫焊接鋼軌中的溫度應力的公式，並對其中參數的求解方法進行介紹;根據收集的資料，介紹了三種使用極限折射縱波測量無縫焊接鋼軌溫度應力的方法，即固定距離測量聲時法、臨界角折射法和頻譜分析法，本實驗系統使用的是第一種;根據實驗經驗以及相關資料，分析了影響極限折射縱波測量溫度應力的幾個因素，並提出了相應的解決方法;根據實驗系統的需要，獨立設計並加工出相關配套的實驗設備，包括實驗鋼塊、有機玻璃楔塊、固定件、載荷外框裝置等。The use of stainless steel, the welded cover of the dms measuring elements and the used of a glass leadthrough for the cable connection allow the equipment to be used without problems, even under unfavourable environmental conditions
該元件由不銹鋼製作， dms測量元件有焊接表層且連接電纜使用了玻璃套管。這些使設備即使在惡劣環境下也能無故障工作。分享友人