查询词典 aluminium base alloy

Sb can combine with Cu and P to form a low melting point compound which lowers the melting point of binary Cu-8P eutectic alloy by nearly 200℃. Bi and Cu can create compounds with low melting point(270℃) distributing at the boundaries and that is the reason why the melting point of (Cu-8P)-Bi is lower than that of binary Cu-8P eutectic alloy. The eutectic cluster can be refined with the addition of Fe, and that is the reason why the addition of Fe can decrease the melting point of Cu-8P alloy. Two means of decreasing the melting point of Cu-8P are found.

一定量的Sb与Cu， P形成低熔点相，从而大幅降低了Cu-8P合金的熔点，使其熔点降低近200℃；加入少量Bi后， Bi与Cu在共晶团晶界上形成熔点为270℃左右的低熔点化合物，且Bi的加入明显细化Cu-8P合金共晶团，从而使Cu-8P合金的熔点降低；加入Fe能明显细化Cu-8P合金的共晶团，使层片间距由8μm减为2μm以下，并使共晶团由层片状向短棒状转变，虽然Fe与Cu形成熔点为806℃的高温相，但Fe的细化作用使得Cu-8P合金的熔点降低，但降低幅度不大。

Using Mo powder,Fe-B alloy powder,and Fe powder as raw materials,and adding Cr,Ni and C alloy and agent polyvinyl butyral,Mo_2FeB_2 hard alloy was clad on a Q235 steel substrate to form a new type of cladding material with excellent wear and cor- rosion resistance property by means of vacuum liquid phase sintering technique.

以Mo粉、Fe-B合金粉、Fe粉为基本原料，掺加适量合金元素Cr，Ni，C，以及有机粘结剂聚乙烯醇缩丁醛，采用真空液相烧结法在Q235钢基体表面制备Mo_2FeB_2硬质合金覆层，获得了力学性能良好且耐磨抗蚀的新型硬质合金覆层材料。

The results show that the flow stress decreases with increasing deforming temperature and increases with increasing strain rate. The flow stress of the alloy during hot compression deformation can be described by constitutive equation in hyperbolic sine function with a hot deformation activation energy of 196.27 kJ/mol. Partial recystallization takes place in the alloys deformed at a high temperature or at a low strain rate, and large number of dislocations and subgrains are observed in the alloy. The elongated grains observed in the samples coarsen with increasing temperature and decreasing strain rate. Correspondingly, the subgrain size increases and the dislocation density decreases. The main soften mechanism of the alloy transforms from dynamic recovery to dynamic recrystallization.

结果表明：Al-Cu-Mg-Ag耐热铝合金在热压缩变形中的流变应力随着温度的升高而减小，随着应变速率的增大而增大；该合金的热压缩变形流变应力行为可用双曲正弦形式的本构方程来描述，其变形激活能为196.27kJ/mol；在变形温度较高或应变速率较低的合金中发生部分再结晶，并且在合金组织中存在大量的位错和亚晶；随着温度的升高和应变速率的降低，合金中拉长的晶粒发生粗化，亚晶尺寸增大，位错密度减小，合金的主要软化机制逐步由动态回复转变为动态再结晶。

Alloy membrane is used to separating hydrogen isotope,but after operating tritium,decay product 3He resorts in alloy membrane,forms helium bubble s and affects the macroscopical properties of alloy membrane.

PdY8.5Ru0.19合金是用于氢同位素分离的膜材料，但涉氚操作后，衰变3He会滞留在合金膜中并形成氦泡，影响其宏观性能。

Scrap carbide recycling: tungsten steel, tungsten alloy scrap, grinding materials, waste PCB drill bits, tungsten carbide tools, tungsten scrap powder, tungsten carbide powder, tungsten steel scrap, carbide grinding materials containing tungsten scrap, alloy grinding material, milling insert, drill bits, cutter, CNC cutter, wire cutting tungsten steel molds, drawing dies, round cut knife, saw blade, top hammer, PCB drill bits, V-CUT knives, knife handle, high proportion of alloy, non-magnetic alloys, tungsten carbide powder, tungsten wire cutter, such as tungsten tool steel scrap.

废硬质合金回收：钨钢、钨合金边角料、磨削料、废PCB钻头、钨钢工具、废钨粉、钨钢粉末、钨钢废料、硬质合金磨削料、含钨废料、合金磨削料、铣刀片、钻头、立铣刀、数控刀具、线切割钨钢模具、拉丝模具、圆切刀、锯片、顶锤、PCB钻头、V-CUT刀、锣刀、高比重合金、无磁合金、钨钢粉末、钨绞丝等各种钨钢废工具。

The main materials are as follows:Carbon steel,low temperature steel, dual phase steel (F51/F53) titanium alloy, aluminum bronze,inconel,SS304、SS304L、SS316、SS316L;chrome-molybdenum steel,Monel(400/500),20#alloy,Hayne's alloy etc.The main products are:check valve,ball valve,gate valve,globe valve, butterfly valve,plug valve etc.we aslo can privide special and non-standarded valves to Satisfy our customer demands.

主要材质有：碳钢、低温钢、双相钢(F51/F53)钛合金、铝青铜、因科镍尔、SS304、SS304L、SS316、SS316L，铬钼钢、蒙乃尔(400/500)、20#合金、哈氏合金等金属材料，止回阀，球阀，闸阀，截止阀，蝶阀，旋塞阀等非标特殊阀门。

The main materials as follows: Carbon Steel , Low temperature Steel, Dual Phase steel (F51/F53), Titanium Alloy, Aluminum Bronze, Inconel ,SS304,SS304L,SS306,SS306L,Chrome-molybdenun Steel, Monel (400/500), 20#Alloy, Hayne's Alloy etc.

主要材质有：碳钢、低温钢、双相钢(F51/F53)钛合金、铝青铜、因科镍尔、SS304、SS304L、SS316、SS316L，铬钼钢、蒙乃尔(400/500)、20#合金、哈氏合金等金属材料，止回阀，球阀，闸阀，截止阀，蝶阀，旋塞阀等非标特殊阀门。

The company is mainly engaged in the imports and exports of tungsten product series, tungsten alloy series, high-density tungsten alloy products, horniness alloy and molybdenum products.

江苏省茂源进出口有限公司系江苏省工商局注册成立的省级经营性外贸公司，主要从事钨系列制品，钨合金制品，高密度钨合金制品，硬质合金，金属钼等金属的贸易。

The GYG-1-240 energy conservation power frequency has the core smelting furnace, mainly uses in smelting the carbon steel, metals and so on alloy steel, high-manganese steel, ferroalloy, cast alloy iron, gray iron, copper, copper alloy smelts, because the furnace temperature is higher than 1600℃, and has six grade of temperature controls, suitably in 1250-1600℃ the different melting point metal's smelting, and may fall the files heat preservation to wait for the casting or the adjustment melt fluid ingredient, the electromagnetism magnetic field magnetic line of force automatic agitation causes the ingredient to be even, non-element loss by burning.

GYG-1-240节能型工频有芯熔炼炉，主要用于熔炼碳素钢，合金钢、高锰钢、铁合金、合金铸铁、灰铸铁、铜、铜合金等金属熔炼，由于炉温高于1600℃，并有六档温度调节，可适用于1250-1600℃不同熔点金属的熔炼，并可降档保温等候浇铸或调整熔液成份，电磁磁场磁力线自动搅拌使成份均匀，无元素烧损。

The GYG-1-240 energy conservation power frequency has the core smelting furnace, mainly uses in smelting the carbon steel, metals and so on alloy steel, high-manganese steel, ferroalloy, cast alloy iron, gray iron, copper, copper alloy smelts, because the furnace temperature is higher than 1600℃, andhas six grade of temperature controls, suitably in 1250-1600℃ the different melting point metal's smelting, and may fall the files heat preservation to wait for the casting or the adjustment melt fluid ingredient, the electromagnetism magnetic field magnetic line of force automatic agitation causes theingredient to be even, non-element loss by burning.

GYG-1-240节能型工频有芯熔炼炉，主要用于熔炼碳素钢，合金钢、高锰钢、铁合金、合金铸铁、灰铸铁、铜、铜合金等金属熔炼，由于炉温高于1600℃，并有六档温度调节，可适用于1250-1600℃不同熔点金属的熔炼，并可降档保温等候浇铸或调整熔液成份，电磁磁场磁力线自动搅拌使成份均匀，无元素烧损。

The United Kingdom has pledged to provide technical assistance to the peacekeeping effort in Darfur, including airlifting supplies and equipment to assist the African peacekeepers.

英国承诺为达佛的維和努力提供技术帮助，包括提供非洲的維和部队空运补給和裝备。

Results: The level of ET-1mRNA in placental villus was significantly higher in pre-eclamptic women than that in control group.

结果：妊高征组患者胎盘绒毛组织ET-1 mRNA的表达较正常妊娠组明显增高。