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The magnetization intensity and direction of AlNiCo PM can be controlled by pulses of d-axis stator current vector.

通过定子直轴电流矢量脉冲控制铝镍钴的磁化强弱和方向,使钕铁硼和铝镍钴产生的磁通共同穿过气隙;或者使钕铁硼产生的磁通部分穿过气隙、部分被铝镍钴在转子内部旁路,利用永磁体的记忆能力使永磁气隙主磁通受控。

The main innovation contents in this dissertation are as follows:For the first time, membrane electrolytic method was used to prepare high-purity nickel chloride solution for producing special nickel powder in a membrane electrobath designed ourselves, and with choosing anion membrane.

本文的主要创新内容有:首次采用膜电解电溶法制备高纯氯化镍溶液,通过阴离子交换膜的选择,在自行设计的膜电解槽中控制适当的电解条件,制备出满足生产特种镍粉要求的氯化镍溶液。

Based on KT-01 nickel catalyst, the scientific research personnel of our company and the expert group of the former subject group from Lanzhou University made joint efforts to tackle the key problems and successfully developed the 2nd generation of KT-02 supported nickel catalyst through in-depth study on the technical formula, catalytic activity and other mechanisms and taking modified carrier, the properties of acid and alkali, the degree of decentralization of active ingredients on the carrier surface, and fundamental breakthrough has been achieved on the aspects of catalytic activity, specific surface area, bulk density, etc, and the technical defects of KT-01 nickel catalyst are completely overcome; the catalytic activity becomes higher, the starting temperature becomes lower, the industrial serviceability temperature is lowered and the yield increased.

在KT-01型镍催化剂的基础上,我公司科研人员与兰州大学原课题组专家联合攻关,通过对工艺配方及催化活性等机理的深入研究,从载体改性、酸碱性、活性组分在载体表面的分散程度等方面入手,成功开发出第二代KT-02负载型镍催化剂系列产品,在催化活性、比表面积和堆密度等方面都有根本性突破,彻底克服了KT-01型镍催化剂的技术缺陷,使催化活性更高、启动温度更低,降低了工业使用温度,提高了生产收率。

The questing for acidic middle-temperature electroless Nickel technology leads to the preferable prescription as follows:Proportion of Nickel Sulphate and Sodium Hypophosphate 0.36; Sodium Acetate 15g/L; Stabilizer A lmg/L(Stabilizer B Img/L for continual experiment); Composite complexing agent Lactic Acid 10ml/L and acetic acid 10 ml/L; Accelerator organic acid G 6g/L; pH value 5.0; Loading Capacity ldm2/L; Temperature 70C (Temperature 75C for continual experiment); Proportion of supplement for Nickel Sulphate and Sodium Hypophosphate 1:1.2; Testing the consumed ion of Nickel solution and supplement inspissations solution every 60min by the proportion of 15% fresh solution.

最后,通过研究得出最佳工艺配方为:硫酸镍与次亚磷酸钠的摩尔比为0.36;乙酸钠15g/L:稳定剂Almg/L(周期实验加稳定剂B10mg/L);复合络合剂组合为乳酸10ml/L+冰乙酸10ml/L:促进剂为有机酸G6g/L;pH值为5.0;装载量为1.0dm~2/L;施镀温度为70℃(周期实验为75℃):主盐与还原剂的添加比例1:1.2;每60分钟对镀后液进行镍离子浓度的测定并按镍离子的消耗量添加浓缩液,添加比例按开缸液的15%。

Connecting with the new properties of NiP amorphous alloys which are prepared by method using nickel hypophosphite as reac-tant,applications of el ectroless nickel in high technological field are described in brief.

本文阐述了化学镀镍在国内外的应用及前景;结合以次磷酸镍为原料的新方法制备的高质量NiP非晶态合金的新性能,介绍了化学镀镍在高科技领域中的应用。

Nitinol is one of the most extraordinary metals to be discovered this century: A simple alloy of nickel and titanium, nitinol has some perplexing properties.

镍钛诺是这个世纪所发现的最不寻常的金属之一,作为镍和钛的简单的一种合金,镍钛诺具有一些令人惊叹的特征。

Based on the amorphous structures of Ni-P alloys derived from X-ray diffraction determination, R〓 or Tp is reasonably explained in terms of the variation in the metal -metalloid bond numbers with P contents according to the rhomb unit structure model .

首先,它对镍晶核的形成有阻碍作用,TU浓度越大,成核所需的过电位越高;其次,在存在镍晶核的表面上,TU对镍颗粒的生长起促进作用,藉此也可解释TU对化学镀层形貌的影响。

In this paper, the processes of electroless Ni-P, Ni-Fe-Co-P and Ni-Co-B platingwere investigated by using graphite pieces as samples first, and then Ni-P, Ni-Fe-Co-Pand Ni-Co-B coatings were deposited onto carbon nanofibers by using the selectedelectroless processes. The composition, structure of the coatings and the properties ofthe metal-coated carbon nanofibers were also studied.

本文首先利用石墨基片研究了化学镀镍磷合金、镍铁钴磷合金和镍钴硼合金工艺,然后利用优化的化学镀工艺在纳米碳纤维表面镀覆了Ni-P、Ni-Fe-Co-P和Ni-Co-B镀层;研究了镀层的成分、结构以及镀层纳米碳纤维的性能。

In this bath, maleic acid was an inhibitor, when its concentration was kept at 20 mg/L, the deposition rate could reduce to 6.17μm/h, the content of nickel decreased to 1.74% and the resistivity was 7.51μΩ·cm; Potassium ferrocyanide inhibited deposition of copper, when its content was 0.5 ppm, the deposition rate decrease to 3.38μm/h, the content of nickel was 2.03%, the resistivity can reduced to 5.41μΩ·cm, the copper deposits also had higher (111) plane orientation. Thiourea was also an inhibitor in this system, when its concentration was kept at 0.8 ppm, the deposition rate was 4.72μm/h, the content of nickel in the film was 1.20%, the resistivity can reduced to 5.46μΩ·cm, at the same time, the deposition at (111) plane orientation become more favorable.

结果表明,马来酸在该体系中是抑制剂,当其浓度为20 mg/L时,镀速降为6.17μm/h,镀层镍含量降为1.74%,表面电阻率降为7.51μΩ·cm,铜层颗粒细小均匀,更有利于在(111)面上的结晶;亚铁氰化钾的加进可以明显降低镀,当其浓度为0.5 ppm时,镀速为3.38μm/h,镀层镍含量降为2.03%,表面电阻率降为5.41μΩ·cm,铜层颗粒细小均匀,(111)晶面衍射峰增强;硫脲在体系中也显示为抑制剂,当其浓度为0.8 ppm时,镀速降到4.72μm/h,镀层镍含量为1.20%,表面电阻率降为5.46μΩ·cm,形成的铜颗粒很小,同时(111)晶面衍射峰增强,有利于铜在(111)面上结晶。

The factory mainly produces phosphorous copper, bronze, copper-tin alloy, red brass, chromium positive pole and zinc bar and plate, as well as some industrial chemicals such as nickel plate, electrolytic copper, cupric sulfate, nickel sulfate, and nickel chloride etc.

本厂生产的磷铜球、磷铜角、青铜板、铜锡合金、红铜角、铬阳极、锌条、兼营的镍板、电解铜、硫酸铜、硫酸镍、氯化镍等各类化工原料,凭借品质高、口碑好、价格合理的优势畅销珠江三角洲及中国其它地区。

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