铬镍合金

The invention provides the flux-cored wire for welding the duplex stainless steel, 17 percent to 24 percent flux-cored powder is filled into stainless steel belt. The invention is characterized in that the mass percent of the components of the flux-cored is as follows: 35 percent to 40 percent of chromium powder, 11 percent to 15 percent of molybdenum powder, 2 percent to 4 percent of nickel powder, 3 percent to 5 percent of manganese powder, 1 percent to 5 percent of magnesia chrome, 1 percent to 3 percent of ferrosilicon, 4 percent to 9 percent of rock crystal, 2 percent to 6 percent of feldspar, 21 percent to 30 percent of rutile, 0.5 percent to 4 percent of Al2O3, 0 percent to 5 percent of zircon, 0.5 percent to 3 percent of Bi2O3, and 0.5 percent to 3 percent of manganese nitride.

一种用于焊接双相不锈钢的药芯焊丝，将药芯粉末以17～24％填充在不锈钢带内，其特征在于，所述的药芯质量百分比成分如下：35～40％的金属铬粉，11～15％的金属钼粉，2～4％的金属镍粉，3～5％的金属锰粉，1～5％的铝镁合金，1～3％的硅铁，4～9％的石英，2～6％的长石，21～30％的金红石，0.5～4％的Al 2 O 3 ，0～5％的锆英石，0.5～3％的Bi 2 O 3 ，0.5～3％的氮化锰。

Objective To study the effect of Mutans Streptococcus on the corrosion resistance of Ni-Cr alloy.

目的 研究变形链球菌对镍铬合金耐蚀性能的影响。

Cooperating with academies chronically, the company offers users of hot rolled steel strip kinds of rollers like lots of alloy steel, alloy semi-steel, eccentric duplex of high nickel chrome molybdenum, hot strop roughing and support roll; offers lots of bainite eccentric duplex roll to high speed stick and wire rolling mill.

公司长期与科研单位合作，为热轧钢带连轧用户提供大批合金钢、合金半钢、高镍铬钼离心复合、热带粗轧及支承辊等各类轧辊，为高速棒、线材轧机提供大批贝氏体离心复合轧辊。

In this paper the as-cast microstructure, the rules of phase precipitation, the change of microstructure and minor phase content and the degeneration of aluminide coating after thermal exposure at temperature range from 850℃ to 1100℃ for 1000-3000 hours have been studied in comparison between two kinds of low chromium-high tungsten cast nickel-base superalloys.

本文对比地研究了两种低铬-高钨系列的铸造镍基高温合金的铸态显微组织，在850～1100℃范围内热暴露1000～3000小时后的相析出规律，显微组织和微量相的变化及铝化物涂层的蜕化。

Discussed element of the matrix in alloy of nickel radical high temperature through the experiment, advocate quantity element if the chromium, cobalt, tungsten, molybdenum, Tantalum, niobium, rhenium spectrum to spectral line of boracic ultimate analysis violates a condition, use matrix to match a law to undertake to matrix interference corrective, fixed appropriate analytic spectral line.

通过试验探索了镍基高温合金中基体元素，主量元素如铬、钴、钨、钼、钽、铌、铼等对硼元素分析谱线的光谱干扰情况，采用基体匹配法对基体干扰进行校正，确定了合适的分析谱线。

Chemical Products, Chemicals: inorganic acid, sodium compounds, potassium compounds, calcium compounds, barium compounds, manganese compounds, chromium compounds, nickel compounds, zinc compounds, magnesium compounds, aluminum compounds, single-element chemical products, even items of the five machines Chemical products, paraffin, waxes other chemicals, coke, oil and chemicals, alcohol, aldehyde chemicals, acetate chemicals, ketones, ethers, phenols chemicals, alkanes, alkenes, acetylene chemicals, amine chemicals, aromatic chemicals, Miscellaneous organic chemicals, acid chemicals, other chemicals, dyes and intermediates, pigment materials, plastic materials, agricultural chemicals: fertilizers, pesticides, growth agents, plastic sheeting, etc., equipment, pyrophoric alloys, articles of combustible materials , chemical reagents, rubber, imports, machinery and equipment, machinery and equipment, apparatus; photographic equipment; printing equipment; general machinery; textile equipment; Machine Components; a variety of equipment, Shanghai, Zhejiang, Guangdong, Jiangsu high-quality, low-carbon The new satellites technology goods manufacturers, exporters, wholesalers, traders, USA, United States importers, wholesalers, retailers, investors, designers, planners, please contact our office, George Chen, Mobile :+

化工产品类，化工原料：无机酸，钠化合物，钾化合物，钙化合物，钡化合物，锰化合物，铬化合物，镍化合物，锌化合物，镁化合物，铝化合物，单元素化工品，什项五机化工品，石蜡、蜡类其他化工品，焦、油化工品，醇、醛化工品，酯化工品，酮、醚、酚化工品，烷、烯、炔化工品，胺化工品，芳烃化工品，什项有机化工品，羧酸化工品，其它化工原料，染料及中间体，颜料原料，塑料原料，农用化工品：化肥，农药，生长剂，农膜等，器材，引火合金，易燃材料制品，化学试剂，橡胶，进口，机械设备，机械及设备，仪器；摄影器材；印刷器材；通用机械；纺织器材；机械基础件；各种成套设备，中国上海，浙江，广东，江苏优质，低碳，新颗科技商品生产商，出口商，批发商，贸易商，美国，美利坚合众国进口商，批发商，零售商，投资商，设计师，规划师们，请与我处联系，George Chen，Mobile：+

OBJECTIVE: To investigate the effects of recasting on the composition and microstructure of Ni-Cr ceramic alloys.

目的：分析反复熔铸对镍铬烤瓷合金化学成分、微观组织结构变化的影响。

OBJECTIVE: To investigate the effect of recasting on bonding strength of porcelain fused to a Ni-Cr ceramic alloy.

其中镍铬烤瓷合金在真空加氩气保护的环境下反复铸造后金瓷结合力的变化报道较少。

Methods: 48 casted Ni-Cr alloy metal specimens (12.0 mm×1.0 mm) were fabricated with ShoFu Vintage Halo porcelain and divided into six groups , eight pieces for each group. They were polished against 200-, 400-, 600-, 800-, and 1,000-grit sandpaper after body porcelain sintered, respectively. The specimens in a sixth group not polished was used as control. Surface roughness and Color parameters of the specimens were measured with a Surface Roughometer EX2154-13 and a spectrocolorimeter respectively.

铸造厚度1.0 mm、直径12.0 mm的镍铬合金试件48片，平均分为A～F 6组，每组8个，用等厚的松风Halo A2色粉状遮色瓷，体瓷和釉质瓷构筑金属烤瓷试件。A组体瓷不进行打磨，作为对照；B、C、D、E、F组分别用200、400、600、800、1 000目的水砂纸打磨体瓷表面；然后用表面粗糙度测试仪EX2154-13测量各组的表面粗糙度。

Both the Flowserve Durco extended boet cartridge plug valves and Flowserve McCaa top-entry cartridge ball valves paed the stringent seismic testing on the first attempt.

福斯杜尔柯镍铬合金延展软冒卷芯防堵阀门与福斯麦坎纳顶端入口卷芯球阀一次性通过了严格的地震测试。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。