Both of tungsten filament and tantalum filament are the ideality material in the HFCVD ,they are have high melting point and boiling point, but there is obviously difference effect between them in the HFCVD.

鎢絲和鉭絲都是作為熱絲的理想材料，具有較高的熔點(diǎn)和沸點(diǎn)亚洲图片视频小说，但是在熱絲法沉積金剛石薄膜的作用還是有很明顯的差異。

With the development of the productivity of tungsten filament , the mode of giving material by hand adopted by Tungsten pole production through swaging can't meet the demand of the society more and more, for its bad working environment and unstable product quality.

隨著鎢絲生產(chǎn)行業(yè)的發(fā)展先锋每日资源网站，旋鍛法生產(chǎn)鎢桿所采用的手工送料方式女人操女人，由于工人勞動條件惡劣以及質(zhì)量不穩(wěn)定免费无毒黄色视频，越來越不能滿足社會的需求。

Third, nearly seven times the service life of halogen lamps; As already mentioned, halogen light-emitting principle is caused by a tungsten filament heating, while the tungsten filament in the long term there will definitely be blown under high temperature damage, so they are the life of 200 ~ 300 hours or so.

第三火福利导航，近7倍于鹵素?zé)舻氖褂脡勖颂逡患禔片黄黄黄；前面已?jīng)講到，鹵素?zé)舻陌l(fā)光原理是由鎢絲發(fā)熱所致网站黄色a，而鎢絲在長久的高溫下難保不燒斷損壞色色无码视频，所以它們的使用壽命只有200~300個小時左右。

Comprehensive production and processing scale should not be less than 3 thousand ton every year, the output of tungsten powder and hard alloy or tungsten filament, tungsten materials and etc.

鎢品生產(chǎn)企業(yè)應(yīng)以鎢品為主營產(chǎn)品高清日韩精品第一页在线观看网站，以2002超碰在线看、2003年平均年產(chǎn)量為準(zhǔn)，綜合生產(chǎn)深夜在线观看网址、加工規(guī)模不低于3000噸/年每日毛片视频，鎢粉及硬質(zhì)合金產(chǎn)量不低于500噸/年。

Quite different from ordinary halogen bulbs that rely on a heated tungsten filament, High Intensity Discharge lights or HID lights don't use a filament.

不同于普通的鹵素?zé)襞菀揽考訜徭u絲一进一出视频黄，高強(qiáng)度放電的HID燈燈或不使用燈絲WWWjiujiZZC0m。

We have make use of the tungsten filament and tantalum filament as the hot filament in the HFCVD experiment separately, to investigate the difference that hot filament influence to the velocity of the sediment.

本論文分別用鎢絲和鉭絲作為熱絲進(jìn)行金剛石薄膜沉積實(shí)驗(yàn)，來研究不同材質(zhì)的燈絲對沉積速率的影響成熟yin荡美妞A片视频。

Traditional lighting an important raw material of tungsten resources and has to replace the tungsten filament light batteries, lighting the first "revolution" and by virtue of the semiconductor lighting industry, accounted for 3.0 billion years, become the country's top five semiconductor lighting industrial bases

傳統(tǒng)照明的重要原料鎢資源国产又爽又湿的视频不要，并已取代鎢絲燈電池，照明第一個"革命"成人无码电影日韩，由半導(dǎo)體照明產(chǎn)業(yè)美德无a黄色视频，占3.0億年，成為全國五大半導(dǎo)體照明產(chǎn)業(yè)基地

The company mainly produces high temperature iodine-tungsten lamp tungsten wire, heating tube heater tungsten wire, film light source with tungsten filament, tungsten and other tungsten wire cutter heterosexual Products.

目前公司主要生產(chǎn)耐高溫碘鎢燈鎢絲户外毛片A片野战片，取暖器加熱管鎢絲中文字幕第1页中文字幕在线，影視光源用鎢絲，鎢絞絲及其它鎢異性產(chǎn)品久久性爱视频免费看。

When end surface is neglected, the reflective energy will return to the filament efficiently if the filament is at the centre axis of the columniform lamp shell. 3 Compared with the straight tungsten filament that has a smooth surface, the helical one obtains higher absorbance which can achieve 0.6~0.7 under the actual screw pitch measurement.

當(dāng)燈的管徑為10 mmWWW人人操人人干，而燈絲外徑為1.5 mm時，節(jié)能可達(dá)12%到13%久久综合迷奸片。2）對圓柱形燈外殼欧美亚洲韩国日本，在不考慮端面影響時，光源的燈絲若處于外殼的中心軸上国产AⅤ精品久久久，則反射的能量會有效地返回?zé)艚z午夜视频在线观看高清在线www。3）螺旋結(jié)構(gòu)的燈絲比表面光滑的直鎢絲有更高的吸收率，燈絲繞成螺旋后在現(xiàn)行的螺距尺寸下吸收率能達(dá)到

Melting point 3410 ℃, boiling point 560 ℃, relative density of 1935, F the external electronic structure of 5d46s2, in the chemical reaction time is very easy to lose 1-6 electronic, but also can get 1-2 electronic, so oxidation number of 0,± 1,± 2, 3, 4 , 5 and 6, with 6 price of the most stable compounds, such as WO3 does not dissolve in water, the air will form in the tungsten trioxide thin protective layer of tungsten, tungsten with fluorine at room temperature, chemical combination, red hot when there is no moisture and Bromine iodide together, red hot when you can and water reaction WO3, at room temperature reaction of tungsten with aqua regia, but the hot concentrated hydrochloric acid and sulfuric acid can only be played with its weak response, but molten nitrate, nitrite, too Hydrogen peroxide, sulfur steam, steam and other phosphorus can play intense reaction, high temperature can not be carbon, boron and silicon reaction of binary compounds, widely used in industrial tungsten steel and tungsten carbide, pure tungsten filament is used to the system, and X-ray tube Tube heating components, semiconductor components can be prepared tungsten silicide, tungsten industrial production is white or black tungsten ore tungsten ore refining.

熔點(diǎn)3410℃国产精品一级毛片国语一级A片，沸點(diǎn)560℃国产色字幕手机在线，相對密度1935，F(xiàn)外圍電子結(jié)構(gòu)為5d46s2，在化學(xué)反應(yīng)時很容易丟掉1—6個電子国产偷情在线，也能得到1—2個電子性交黄色视频，所以氧化數(shù)為0、±1日韩美女福利禁止观看网站视频免费、±2日韩福利微拍在线播放视频网站大全、＋3、＋4看av网址、＋5和＋6五月婷婷超碰在线，以＋6價化合物最穩(wěn)定，如WO3不溶于水谁有看毛片的网址，空氣中的鎢會形成薄層三氧化鎢保護(hù)層一级A片久久久免费看，鎢能與氟在室溫下化合，紅熱并無潮氣時能與溴日本人人操人人摸在线、碘化合亚洲图片综合，紅熱時還能和水反應(yīng)生成WO3，室溫下鎢可與王水反應(yīng)观看A片的网址，但熱的濃鹽酸和硫酸只能與其起微弱反應(yīng)色老99在线精品，但對熔融的硝酸鹽、亞硝酸鹽无码毛片视频一区二区无码、過氧化氫免费在线视频青青无码、硫蒸汽、磷蒸汽等能起激烈反應(yīng)激情精品一区二区在线观看，高溫下不能與碳欧美一级A片黑人又粗又大、硼和硅反應(yīng)生成二元化合物，工業(yè)上廣泛使用鎢鋼和碳化鎢爱搞为爱搞点激，純鎢用來制燈絲乱婬网站、電子管和X射線管的發(fā)熱元件，硅化鎢可制半導(dǎo)體元件黄色网站上毛片子上黄，鎢工業(yè)生產(chǎn)是將白鎢礦石或黑鎢礦石精煉。