查询词典 hafnium

A chromium free conversion coating at least equivalent in corrosion protective quality to conventional chromate conversion coatings can be formed on metals, particularly cold rolled steel, by a dry-in-place aqueous acidic liquid comprising: a component of anions, each of said anions consisting of at least four fluorine atoms and at least one atom of an element selected from the group consisting of titanium, zirconium, hafnium, silicon, and boron, and, optionally, ionizable hydrogen atoms, and optionally, one or more oxygen atoms; a component of cations of elements selected from the group consisting of cobalt, magnesium, manganese, zinc, nickel, tin, zirconium, iron, and copper; the ratio of the total number of cations of this component to the total number of anions of component being at least 1:5; sufficient free acid to give the composition a pH in the range from 0.5 to 5.0; a component selected from the group consisting of phosphorus-containing inorganic oxyanions and phosphonate anions; and a component selected from the group consisting of water-soluble and water-dispersible organic polymers and polymer-forming resins and, preferably, also including a component selected from the group consisting of tungstate, molybdate, silicotungstate, and silicomolybdate anions.

通过对包含以下成分的含水酸性液体进行干燥，可以在金属上形成无铬的转换涂层，该涂层与普通铬酸盐转换涂层相比，至少在抗腐蚀质量上等效：$_一种阴离子成分，所述各个阴离子包括至少4个氟原子，至少选自钛、锆、铪、硅与硼元素中的1个原子。任选地可离解的氢原子，任选地1个或多个氧原子；$_一种选自钴、镁、锰、锌、镍、锡、锆、铁与铜元素的阳离子成分，上述成分的阳离子总数与成分内的阴离子总数之比至少为1∶5；$_足够的游离酸以使该组合物的pH值在0.5～5.0的范围内；$_一种选自含磷的无机含氧阴离子与膦酸盐阴离子的成分；$一种选自水溶性与水可分散性有机聚合物与聚合物形成的树脂的成分，优选还包括一种选自钨酸盐、钼酸盐、钨硅酸盐与钼硅酸盐阴离子的成分。

Supply contact group, were positive,, mountain hafnium, butt Qi, Wang main parts such as automatic lathes, table lathes have, belts, steam-driven chuck Block, Grinding, open closed claw, Tool,òsmall motors, clutches, cam blanks, chuck, drilling chuck, cam, cam Events, cam thimble, tools, wheel discs, retaining materials arm, S plate, rolling round silk flower attack, attack left tooth wire, drill bits, L-drill, round bars, tungsten steel round bars, die, plate braces, dental regulation, cone, non-ditch attack silk, silk YAMAWA attack Japan, Japan OSG silk attack.

供应洽群、名阳、昌勇、山铪、錡夆、王主等自动车床零配件，有桌上车床、皮带、汽动夹头座、磨刀机、开闭爪、车刀、打油小马达，离合器、凸轮毛胚、夹头、钻尾夹头、凸轮、活动凸轮、凸轮顶针、车刀、砂轮碟，挡料臂、S型板、滚花轮丝攻，左牙丝攻、钻头、左旋钻头、圆棒，钨钢圆棒、板牙、板牙套、牙规、牙轮、无沟丝攻、日本YAMAWA丝攻、日本OSG丝攻。

The reaction of sodium alkylcycloperitadienide with metal chlorides gave derivatives of bisdichlorides of titanium, zirconium and hafnium where alkyls were n-propyl and n-butyl.

本文报导烷基环戊二烯基钠与金属氯化物反应合成钛、锆和铪的双金属二氯化物以及通过卤素交换制备双钛的二氟化物的方法。

The BIL not only gets hafnium into the gate stack but gives the process engineer one more tuning knob.

BIL不仅可让铪进入栅极的堆叠，还让工艺工程师多了一个微调的手段。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。