tungsten deposit 中文意思是什麼
tungsten deposit
解釋
鎢礦床-
The research results show that, from the viewpoint of second phase morphologies, there exist quite differences between the grain - type materials ( such as wc / bcu brazing deposit material, wrs1000 and 1zt tungsten carbide strengthening overlaying material, as well as the wear - resistant material of polymer adhesive coating etc. ), and the aggregation - type as well as dispersion - type ones ( such as zg35simn, wrd - 1 and khc - k2 depositing material ) in the wear - resistance and sand slurry abrasion mechanism. the sand slurry abrasion mechanisms are brought forward, of new wear - resistant materials with the features of grain - type second phase morphologies
研究發現，與聚合型、彌散型第二相的材料（如zg35simn 、 wrd ? 1和khc ? k2熔敷材料等）相比，顆粒型第二相的材料（如wc bcu釬焊熔敷耐磨材料、 wrs1000型耐磨材料、 1zt碳化鎢顆粒增強熔敷材料及ktc ? 1耐磨膠粘塗層材料等）在耐磨性能和磨損機理等方面均有不同，總結提出了以「顆粒型第二相」為特徵的耐磨新材料泥沙磨損機理。 -
Improved hand picking technology greatly enhance the mineral processing tate of waste in many dressing plants. the flotation in normal temperature is a big breakthrough in mineral processing technology of scheelite. improved jig sizing applied in roughing and grqvity dressing, and improved tungsten fine deposit recovering technology enhance the recovery of tungsten fine deposit
手選工藝的改進，使各選廠的廢石選出率得到大幅度地提高；常溫浮選是白鎢選礦工藝的重大技術突破；推廣並改進動篩跳汰使這在粗、重選中獲得應用；鎢細泥工藝的改進提高了鎢細泥的回收率。 -
The occurrence state and synthesis utilization of accompanying silver in tungsten deposit of china
我國鎢礦床中伴生銀的賦存狀態及其綜合利用 -
Log ( fh2o / fhcl ) fluid and log ( fhf / fhcl ) fluid ), tongchang porphyry copper deposit system is enriched in chlorine, however dajishan tungsten deposit system is relatively enriched in fluorine, which transport w, sn, nb, ta, et al. ( 8 ) according to the characters of the porphyry copper deposits, copper is transported by chlorine, such as cucl0 and cucl2
忍l ） flu ， d 、 109 （ / hr州el ） fluid ）發現，銅廠斑巖型銅礦床的成礦體系是相對富氯體系，而大吉山石英脈型鎢礦床成礦體系相對富氟，同時氟可能主要遷移w 、 sn 、 nb 、 ta等金屬元素。 -
Composition of cobalt - tungsten deposit was changed with the change of tungsten concentration and current density in plating solution
實驗表明，隨著鍍液中鎢離子濃度的不同和電流密度的改變，鈷鎢合金鍍層組成不同。 -
Crystalline deposit obtained in low concentration of tungsten and current density, and amorphous or mixture microcrystal deposit obtained in high concentration of tungsten and current density
當鍍液中鎢離子含量低，電流密度低時，鍍層為晶態結構；當鍍液中鎢離子含量高，電流密度大時，鍍層呈非晶態或混合微晶態結構。 -
Results showed cobalt - tungsten deposit as copper barrier at temperature of 500 and below was superior to nickel, cobalt deposit
當溫度低於500時，鈷鎢合金鍍層的防銅滲性能優於後二者。 -
Meanwhile, properties of cobalt - tungsten, nickel, cobalt deposit as copper barrier at temperature between 400 and 800 were compared
同時比較了在400 800下，鈷鎢合金鍍層與鎳層、鈷層的防銅滲能力。 -
Because the tungsten from the phosphotungstic acid could pull out and deposit on the surface of catalyst, and the electronegativity of mo - o is smaller than that of w - o. the smaller the electronegativity is, the higher oxidation activity is. thus phosphomolybdic acid shows better catalytic oxidation activity than phosphotungstic acid
由於磷鎢酸中的鎢可以脫出並少量沉積到催化劑表面，而且從電負性來說mo - o的鍵能小於w - o ，鍵能小的雜多酸有較強的氧化性，所以鉬系雜多酸催化活性要好於鎢系雜多酸。 -
Cl, s, f, tongchang porphyry copper deposit and the dajishan tungsten deposit are selected as the studying objectives, detailed investigations have been conducted into the geological and geochemical characteristics of the granitic rock, biotite, trace element and ree geochemistry, fluid inclusion geochemistry and the partitioning coefficients of the f, cl, cu, w. based on these data, the following conclusions are drawn : ( 1 ) fluorine can reduce the viscosity and density of magma, temperature of solide - liquidus line and change the melt frame, but cl has little effect on the melt
主要的認識如下： （ 1 ） f在花崗質巖漿中，可以降低巖漿的粘度、密度、固液相線溫度、改變熔體結構，而cl對熔體結構沒有多大的影響。 f在流體?花崗質熔體相間，絕大多數配分系數小於1 . 0 ，趨向于熔體相中配分， d _ f隨體系中f濃度的升高而增加。
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