根据电化学分析，5-甲基苯并三氮唑（m-BTA）的腐蚀抑制能力要高于并三唑（BTA）的-当羟基乙叉二膦酸（HEDP）电解液中同时含有m—BTA及氯离子时，其抑制解离能力比从含有m-BTA的更好，即使施加更岛的阳极氧化电位依然能保持良好的抑制能力。由电化学附抗谱法、纳米划痕实验以及能谱分析结果得知，m-BTA抑制能力的提升是因为整体钝化膜厚度的增加而引起的。由X射线光电子能谱分析得知，氯高子与m-BTA钝化层形成『Cu（1）Cl（m-BTA）]。高分子化合物，使得整体钝化层厚度增加。因此，在含有m—BTA的HEDP电解液中添加氯离了有助于m-BTA钝化层抑制能力的增强，进而更有效的电位操作区间得到扩展。

According to the electrochemical analysis, the corrosion inhibition efficiency of 5-methyl-1H-benzotriazole (m-BTA) is higher than that of benzotrizaole (BTA). The inhibition capability of the m-BTA passive film formed in hydroxyethylidenediphosphonic acid (HEDP) electrolyte containing both m-BTA and chloride ions is superior to that formed in m-BTA-alone electrolyte, even at a high anodic potential. The results of electrical impedance spectroscopy, nano-scratch experiments and energy dispersive analysis of X-ray (EDAX) indicate that the enhancement of m-BTA inhibition capability may be due to the increasing thickness of passive film. Furthermore, X-ray photoelectron spectrometry (XPS) analysis indicates that the increase in passive film thickness can be attributed to the incorporation of Cl? into the m-BTA passive film and the formation of [Cu(I)Cl(m-BTA)]n polymer film on Cu surface. Therefore, the introduction of Cl? into m-BTA-containing HEDP electrolyte is effective to enhance the

通过改变错齿BTA中间齿断屑槽槽宽L,来研究中间齿断屑的问题。用3支中间齿断屑槽槽宽不同的错齿BTA在切削速度为62.8 m/min,进给量为0.2 mm/r下对45钢进行钻削。通过对切削力和切屑的分析,得出错齿BTA中间齿断屑槽槽宽L对中间齿断屑有影响。

By changing the width L of stagger BTA middle tooth chip-breaker,the problem of middle tooth breaker was re-searched. With the cutting speed of 62.8 m/min and feed rate of 0.2 mm/r,three stagger BTA ,whose middle tooth chip-breaker width were different,were used to drill the 45 steel. Through the analysis of cutting force and chip,the conclusion is obtained that the width L of stagger BTA middle tooth chip-breaker has impacts on middle tooth breaker.

采用密度泛函理论计算了缓蚀分子苯并三氮唑(BTA)和二巯基噻二唑(DMTD)的全局反应活性和局部反应活性。采用分子动力学方法模拟了不同含量的BTA和DMTD对其热力学性质的影响。同时通过腐蚀试验研究了缓蚀剂复配体系的缓蚀效果。结果表明：两种缓蚀分子的缓蚀效率关系为BTA小于DMTD,活性主要集中于N和S原子上,有多个活性位点,因此,缓蚀剂分子平卧式吸附在铜表面；铜表面吸附单个缓蚀剂分子BTA和DMTD后,室温下比热容基本相同,但随缓蚀剂含量的增加,比热容呈增大趋势。这为铜箔轧制油缓蚀剂的选择提供理论指导。通过腐蚀试验研究,复配体系缓蚀具有很好的缓蚀效果, BTA和DMTD的复配比例为1：1时最佳。

The global and local activity of benzotrialole (BTA) and 2,5-Dimercapto-1,3,4-thiadiazole (DMTD) are calculated by density function theory. Thermodynamic properties of BTA and DMTD are simulated by molecular dynamics. The corrosion inhibition effect of mixed system inhibitor is studied through corrosion test. The results show that the inhibition efficiency of DMTD is larger than that of BTA. There are several active sites which focus on N and S atoms. So the inhibitors are absorbed on the surface of Cu in the parallel direction. The specific heat capacities of Cu absorbing inhibitor are the same as those without Cu adsorbing inhibitor at room temperature. The specific heat capacities increase with inhibitor increasing. They provide the reference for the selection of the inhibitor. The effect of mixed system inhibitor is better and the best mixed ratio is BTA:DMTD=1:1.

研究了BTA,MBI,MBT等3种铜缓蚀剂在H2S环境中的缓蚀性能,采用量子化学研究方法对实验结果进行了分析,研究了苯三唑在铜表面所形成的配合物保护膜的稳定性。结果表明,MBT抗H2S腐蚀性能较差,BTA是铜及其合金在H2S环境中理想的接触缓蚀剂和气相缓蚀剂。

The existence of H2S in environment is one of the factors causing discoloration of Cu. The inhibition of BTA, MBI, MBT, and the stability of BTA -Cu protection layer in H2S atmosphere were investigated. The experimental results were analyzed by quantum chemistry calculation method. Results indicated that BTA is a perfect corrosion inhibitor for Cu in H2S environment while the performance of MBT is discontented.

深孔加工是一种仍在不断发展的综合技术。在应用中，大长径比的孔必然使得钻杆细长，工艺系统刚性差，从而造成孔的偏斜和表面质量的下降。文章从BTA刀具三向力的平衡关系着手，计算出钻削过程中不同进给量下BTA刀具每齿的受力大小，并建立BTA刀具系统的三维模型。基于BTA刀具系统的实际结构和计算结果，对BTA刀具系统施加位移和力边界条件，利用ANSYS有限元分析软件，对钻削过程中刀具系统的变形，应力分布，模态频率，响应频率等动静态特性做了预测分析。分析结果对于钻削过程中进给量的选择和避开共振区等有一定的参考价值。

Deep hole drilling technology is an integrated technique that is still developing. In the application, large length to diameter ratio makes a slender drill pipe and poor rigidly of process system inevitable, and leads to the deflection and decline of the surface quality consequently. From the perspective of the equilibrium relation of the force, the forces of each cutting edge were calculated under different drilling process, and a three-dimensional model of BTA deep drilling system was established. Based on the structure of BTA drilling system and the force calculated, displacement and force boundary conditions were applied on this system. By means of ANSYS FEM analysis software, the deformation of the drilling system, stress distribution, modal frequencies, response frequencies etc were predictive analyzed. The analysis results have a certain reference value for the choices of feed rate and avoid the resonance region.