bpec 中文意思是什麼
bpec
解釋
北京石油化工工程公司-
Thus atom diffusion is a ' key factor to pecht. how do atoms diffuse under bpec heating
因此，原子的擴散是決定脈沖大電流熱加工的重要因素。 -
Comparing shrinkage under bpec and conventional heating, we can conclude that obvious shrinkage occurred at relative lower temperature and velocity of shrinkage was greater under bpec heating
比較脈沖大電流和輻射加熱燒結過程中樣品的收縮，結果表明前者在相對較低的溫度即發生明顯的收縮，並且收縮速率大於後者。 -
The samples were welded at 800, 900. d _ ( cu ) and dni at contacting line increased with increase of welding temperature. and atom diffusion at contacting line welded by bpec heating was much quicker than by radiation heating
其它條件相同時，改變裝模方式以獲得不同的加熱條件和電場條件，結果表明，無模套時接觸面處cu和ni的擴散系數比有模套時大。 -
And is it the same as under radiation heating ? do the special electric and magnetic fields produced by bpec accelerate atom diffusion ? understanding the above questions fully is a key to expose the mechanism of pecht
在脈沖大電流加工過程中原子是如何擴散的，與一般的加熱燒結、焊接是否一樣，脈沖大電流形成的特殊電場及磁場是否對原子的擴散有大的推動作用，弄清這些問題成為進一步揭示脈沖大電流熱加工機理的關鍵。 -
In this paper, three unique models were designed to research atom diffusion at interface, contacting line and joining point under bpec heating and compare with it under radiation heating in order to find out if bpec speed atom diffusion. the first model was aimed to research atom diffusion at interface under bpec heating. experiment condition of bpec diffusion welding sheet cu and ni : direct diffusion welding, at a pressure of l0mpa, welded at 750 ~ 900, with heat rate of 200 ~ 400 / min for 10mm, on / off of 6 / l ~ 48 / 8, with die or not, vacuum of 6pa
本文設計出三種樣品預構件，研究脈沖大電流加熱條件下片狀材料、線狀材料和球形顆粒之間的原子擴散過程，弄清脈沖大電流加熱條件下原子擴散與一般燒結和焊接過程中原子擴散的區別，以證實特殊的電場和磁場是否對原子的擴散有推動作用，揭示脈沖大電流加熱條件下原子的擴散過程，探索脈沖大電流熱加工技術快速高效的原因。 -
Bpec established in 2003, which is a joint venture outside in home, the factory located in the juliang street no. 21 of cheng - an economic development zone inhebei, it regards producing and selling steel to a con - struction piece, the equipments of heat and it is series products as the contents primarily
邯鄲博佩克成套設備工程技術有限公司，成立於2003年，是一家中外合資企業，廠址位於河北成安開發區聚良大道21號，以生產和銷售鋼架結構件、暖通設備及其系列產品為主要經營內容。 -
The third model was designed to investigate atom diffusion at contacting point. fe was sintered at 500, 550 > 600, 650 > 700 under bpec and radiation heating. the test results of image processing indicated that the average pore size took on wavelike with temperature under bpec heating
脈沖大電流加熱條件下，其它條件相同時，分別在800 、 900的溫度武漢理土大學碩士學位論文下擴散連接cu絲和ni絲，結果表明接觸線處cu和ni的擴散系數隨溫度的升高而增大。 -
Pulse electric current heat treatment ( pecht ) developed by sodick, ltd., of japan, is a recently developed material processing method which consists of spark plasma sintering and welding, plasma activated sintering and welding, big pulse electric current ( bpec ) diffusion welding etc. the following are basic merits of pecht : rapid heating and cooling ; short sintering or welding time ; lowering sintering or welding temperature
脈沖電流熱加工（ pulseelectriccurrentheattreatment ，比如燒結，焊接等）是九十年代發展起來的一種材料快速制備新技術，它包括放電等離子燒結與焊接、等離子活化燒結與焊接、脈沖大電流擴散焊接等。它具有升溫、降溫速度快、能在較低的溫度下燒結或焊接以及時間短的特點。 -
Bpec handrail, a new type compositive handrailing which hollow ball, metal stucture, its stanchion is set up with several metal hollow balls and pipc through welding, the composition at worksite is very simple and easy without any welding, economic & fine outlook, stable, convenient for installing and separaing
博佩克欄桿是一種新型的空心球金屬結構組合式欄桿，立柱由若干個金屬空心球和同一材料的金屬管通過焊接成為柱子；扶手，橫桿與立桿採用現場組裝，可不用焊接，具有經濟美觀，安裝及拆卸簡便，牢固耐用的優點。
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