Phenolic foam is a new generation heat preservation prevent fire soundproof material and polystyrene together ammonia ester foaming rubber etc, material to compare, and it is good that its biggest characteristics is a heat - proofound the low temperature contractility is smatt, and have te special prevent burning wit the size stability under 2000 heat, not burning, not melt not contract constant form not poisonous spirit hove no thick smoke, just surface formation layer
信息內容:酚醛泡沫為新一代保溫防火隔音材料與聚苯乙烯聚氨脂發泡橡膠比,其最大特點是耐
熱性好,低溫收縮性小,具有獨特的阻燃和尺寸穩定性,在
焊槍火焰下,不燃燒不收縮不變形,無毒氣無濃煙,只是表面炭化,性質穩定,耐化學腐蝕抗老化。
Medium frequency induction heating equipment are used in metal melting, temperature keeping, diathermic technology, metal - heat processing brass soldering, quenching, tempering and sintering
中頻感應加
熱設備適用於各種金屬熔煉,保溫,透
熱,金屬
熱處理,釬
焊,淬火回火,燒結,釬絲鋼絲等。
Simulation of grain growth in the haz of stainless steel eb
1不銹鋼
焊接
熱影響區晶粒生長模擬
( 2 ) design of the implantating device : some quantity of 316l stainless steel, perform forging and thermal rolling, drawing filament ( diameter 0. 4mm and 0. 23mm respectively ), enlacing and jointing, after that assembling the products into guiding filum, a technical examination was carried out to appraise their physical capability. the second part : experimental study : animal experiments were used to screen and observe its validity and security : under general anesthesia, tracheotomy was performed on the healthy dog, the bronchus was localized using x - ray fluoroscopy fibrobronchoscope and with the help of the implanting equipment, several niti alloy occludes were implanted into the target bronchus of the dogs through the biopsy channel in the fibrobronchoscope
( 2 )推送器的研製:取316l不銹鋼
熱軋,分別拉製成不同直徑的不銹鋼絲分別用作製作內芯、外環及車制螺絲,再經纏繞、
焊接、裝配成推送器。對上述兩者進行技術鑒定。第二部分:支氣管封堵器的實驗研究:四種形狀的封堵器分四組(上述四種封堵器各12隻)進行動物實驗,分別觀察其安全性與有效性。
The 11th beijing essen welding & cutting fair is open today. on behalf of china welding association, i warmly congratulate its opening
第十一屆北京?埃森
焊接與切割展覽會勝利開幕了,我謹代表中國
焊接協會表示
熱烈祝賀!
Qishuyan locomotive & rolling stock works, situated in changzhou city, jiangsu province and founded in 1905, covers an area of 1, 760, 000 square meters, owns 4, 500 unitssets of various mechanical equipment, and possesses a comprehensive production capability of forging & casting, machining, riveting & welding, heat treatment, tooling & patterns and sophisticated measures for physical & chemical tests, metrological measurements & inspection. it is an important base for manufacturing artery dedicated diesel engine locomotives, freight wagous, heavy duty diesel engines and railway components, which have won the credit and trust from customers by their excellent quality and outsanding aftersales service and enjoy good sales throughout the country and in countries in europe and america
公司介紹:戚墅堰機車車輛廠地處經濟發達、科技進步、風景秀麗、人傑地靈的江蘇省常州市,創建於1905年,佔地176萬平方米,擁有各類機器設備4500臺,具有鍛鑄、機加工、鉚
焊、
熱處理、工裝模具等綜合生產能力,以及齊全的理化試驗、計量和檢測手段,是我國鐵路干線內燃機車、貨車、大功率柴油機和鐵路配件的重要生產基地,以優質的產品和優良的服務羸得客戶信賴,產品銷售遍及全國並遠銷至歐美等國際市場。
The purpose of the paper is to search the feasibility of the ecletron - beam weld of ti3al intermetallics and tc11 ( a + b ) two phase titanium alloy, and the influence to weld microstructure and properties of the hot deform and heat treatments
本文的目的是探索ti _ 3al金屬化合物tac - 1b合金與tc11兩相鈦合金電子束
焊、
熱模鍛及
熱處理的可行性,並研究
焊后
熱加工變形與
熱處理對組織與性能的影響。
Hf electrothermal equipment production company, be applied to smelting. qian welding. heat treatment. forging hf hanguan. large direct current generator mechanics
我公司生產中高頻電
熱設備,可應用於熔煉.釬
焊.
熱處理.鍛造高頻
焊管.大型直流電動機調速等
I hf electrothermal equipment production company, be applied to smelting. qian welding. heat treatment. forging hf hanguan. large direct current generator mechanics
我公司生產中高頻電
熱設備,可應用於熔煉.釬
焊.
熱處理.鍛造高頻
焊管.大型直流電動機調速等
Semiconductor devices - mechanical and climatic test methods - part 20 : resistance of plastic - encapsulated smds to the combined effect of moisture and soldering heat
半導體裝置.機械和氣候試驗方法.第20部分:塑料密封的smds抗濕氣和釬
焊熱綜合影響的性能
Semiconductor devices - mechanical and climatic test methods - resistance of plastic - encapsulated smds to the combined effect of moisture and soldering heat
半導體器件.機械和氣候試驗方法.塑料包封的smds的抗濕及釬焊熱度綜合影響