Henan Pingyuan Optics Electronics Co.

Jiaozuo, China

Henan Pingyuan Optics Electronics Co.

Jiaozuo, China

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Yang Y.-Z.,Henan Polytechnic University | Deng Y.-F.,Henan Polytechnic University | Meng X.-Z.,Henan Pingyuan Optics Electronics Co. | Huang S.-B.,Henan Pingyuan Optics Electronics Co. | Wang Z.,Henan Pingyuan Optics Electronics Co.
Chang'an Daxue Xuebao (Ziran Kexue Ban)/Journal of Chang'an University (Natural Science Edition) | Year: 2011

Automobile supply chain was divided into purchase, manufacture, sale and return processes in order to evaluating the auto supply chain performance objectively and accurately. The index system of automobile supply chain performance was built. The multi-level extension method based on analytic hierarchy process was constructed. The analytic hierarchy process was used to ascertain weights of evaluation indices. The comprehensive correlative degree was adopted as evaluation criteria. So the subjectivity in evaluation was avoided. The index system and evaluation model above were applied in performance evaluation of an automobile supply chain. Evaluation result is excellent. The procedure of performance evaluation indicates that the extension method can be used to evaluate single object. What's more, the evaluation process is so simple that this method can be popular in enterprises easily.


Wang K.-F.,Henan Polytechnic University | Zhou Z.-J.,Henan Pingyuan Optics Electronics Co. | Xu G.-T.,Henan Pingyuan Optics Electronics Co. | Zhang J.-Z.,Henan Pingyuan Optics Electronics Co. | LU S.-L.,Henan Pingyuan Optics Electronics Co.
Zhuzao/Foundry | Year: 2014

The gypsummould and counter gravity casting process are combined for magnesiumalloy casting to study the effect of mold preheating temperature on as-cast microstructure and mechanical property of ZM5 magnesium alloy. The results showe that the optimal preheating temperature with maximum mechanical properties is 330-350℃ at which tensile strength is (195±5) MPa, elongation (1.5±0.4)%, and with preheating temperature increasing, the mechanical properties decrease. For magnesium alloy thin-wall parts, incresing mold preheatingtemperature is anoptimal option for good forming.


Wang K.,Henan Polytechnic University | Xu G.,Henan Pingyuan Optics Electronics Co. | Zhou Z.,Henan Pingyuan Optics Electronics Co. | Zhang J.,Henan Polytechnic University | And 2 more authors.
Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys | Year: 2014

Different protective methods of the gypsum mold for gravity casting of magnesium alloy were analyzed comparatively. The results show that manufacturing process by using borate and gypsum powder mixed protection is simple, however, it may affect cure of gypsum slurry. By using manufacturing process of watering borate after mold baking, the oxidation on casting surface exhibits serious. Manufacturing process by watering borate after borate and gypsum powder mixing baking exhibits the oxidation-free and desirable ignition-proof efficiency, however, due to increasing procedure, the method is only suitable for the small batch of production of magnesium alloy parts.


Mi G.F.,Henan Polytechnic University | Zhang J.Z.,Henan Polytechnic University | Zhang J.Z.,Henan Pingyuan Optics Electronics Co. | Lv S.L.,Henan Pingyuan Optics Electronics Co. | Wang P.,Henan Pingyuan Optics Electronics Co.
Advanced Materials Research | Year: 2011

Wear behaviour of aged casting Cu-Al-Fe-Be and Cu-Al-Fe-Ni aluminum bronzes was studied in this paper. The microstructures, mechanical properties of hardness and tensile strength, were evaluated experimentally. The friction and wear resistance, and the electrical resistivity of the materials were assessed. The results show that mechanical properties of the Cu-Al-Fe-Be alloy have been improved by solution treatment at 950° C for 120 min followed by aging at 350° C for 120 min, whilst the most suitable heat treatment for the Cu-Al-Fe-Ni alloy was solution treatment at 950 deg; C for 120 min followed by aging at 450° C for 120 min. In the wear testing, the as-cast alloys was dominated by abrasive wear, and the increase in load and sliding velocity, the adhesive wear and oxidation wear dominated. The experimental results also showed that the Cu-Al-Fe-Be alloy possessed higher hardness and tensile strength, lower friction coefficient and lower wear rate compared to the Cu-Al-Fe-Ni alloy. © 2011 Trans Tech Publications.


Wang K.-F.,Henan Polytechnic University | Zhang J.-Z.,Henan Pingyuan Optics Electronics Co. | Lu S.-L.,Henan Pingyuan Optics Electronics Co. | Zhou Z.-J.,Henan Pingyuan Optics Electronics Co.
Zhuzao/Foundry | Year: 2015

The experiment was done to study the effect of gypsum mold protection methods on oxide inclusion of ZM5 magnesium alloy by vacuum pouring. The results show that by using SF6 atmosphere protection and vacuum pouring, some local oxidation was found on the surface and inner of poured sample. By combining SF6 atmosphere and borate protection, inner oxidation of cast samples decrease and its mechanical strength is relatively high. Therefore, this method not only solves the filling problem of ZM5 alloy, but also reduces the difficulty of mold protection. © 2015, Chinese Mechanical Engineering Society. All right reserved.


Mi G.,Henan Polytechnic University | Zhang J.,Henan Polytechnic University | Zhang J.,Henan Pingyuan Optics Electronics Co. | Wang H.,Henan Polytechnic University
Key Engineering Materials | Year: 2011

Alloys were produced by casting of Cu-Al-Fe-Be and Cu-Al-Fe-Ni aluminum bronzes and aged. The microstructures and mechanical properties were evaluated. The results indicated that solution and aging treatment can significantly improve the plasticity of Cu-Al-Fe-Be and Cu-Al-Fe-Ni, while the strength and hardness remained in the quenched level. Extending the aging time can effectively enhance the mechanical properties of alloys, and the longer the aging time, the higher the electric resistance of alloys. According to the results, the mechanical properties of the Cu-Al-Fe-Be alloy can be improved remarkably by solution treatment for 120 min at 950°C, followed by aging treatment for 120 min at 350°C, and quenched. While the most suitable heat treatment for the Cu-Al-Fe-Ni alloy was solution treatment 120 min at 950°C, followed by aging for 120 min at 450°C, and quenched. The experimental result also suggested that the Cu-Al-Fe-Be alloy possessed higher hardness and tensile strength compared to the Cu-Al-Fe-Ni alloy.


Wang K.,Henan Polytechnic University | Xu G.,Henan Pingyuan Optics Electronics Co. | Zhou Z.,Henan Pingyuan Optics Electronics Co. | Zhang J.,Henan Polytechnic University
Tezhong Zhuzao Ji Youse Hejin/Special Casting and Nonferrous Alloys | Year: 2015

Effects of pouring method on microstructure of ZL205A alloy in sand mold casting were investigated comparatively. The results show that, for low pressure casting, compared with gravity casting, grain size in the alloy is refined due to the solidification under pressure, and microporosity in the alloy castings is decreased significantly with density increase. In addition, the experiment also reveals that the as-cast grain is sensitive to chilling effect, where with increasing in cooling rate, grain size is decreased. For the conventional casting, as a result of the slow cooling rate at the later stage of solidification, θ-Al2Cu phase may be precipitated in form of lamellar in α-Al matrix, affecting as-cast strength of ZL205A alloy. ©, 2015, Journal Office of Special Casting and Nonferrous Alloys. All right reserved.


Song K.,Henan Pingyuan Optics &Electronics Co. | He B.,Henan Pingyuan Optics &Electronics Co. | Zhao C.,PLA Military Representative at No. 258 Factory | Wei Q.,Henan Pingyuan Optics &Electronics Co. | And 3 more authors.
Journal of Applied Optics | Year: 2015

In order to enlarge the observation range, adopt the module units and raise the reliability, a multi-functional panoramic sight was designed. By using ballscrew and linear bearing, the lifting at its head was realized so that the observation range of the product could be enlarged. By using gear cluster differential technology, the moving transmission of the mirror was realized so as to guarantee the system reliability. Through driving the Dove prism with a step motor and the cooperation with the absolute value type photoelectric encoder to feedback the angular value position information, the image revolving during panoramic sighting was eliminated, so that the system observation and aiming accuracy and the angle-measuring accuracy could be guaranteed. Engineering practice shows that the panoramic sight can perform the following actions: observation & aiming day and night, zooming continuously 3×~6× at day, 300 mm lifting at its head, all panoramic sighting in azimuth, the angle-measuring accuracy is no less than ±1 mard during continuous rotation. © 2015, Editorial Board, Journal of Applied Optics. All right reserved.


Su Y.,Henan Pingyuan Optics Electronics CO. | Chen J.,Henan Pingyuan Optics Electronics CO. | Zhang Y.,Henan Pingyuan Optics Electronics CO. | Zhang C.,Henan Pingyuan Optics Electronics CO. | Gong T.,Henan Pingyuan Optics Electronics CO.
Journal of Applied Optics | Year: 2015

In order to process code disc pattern on the Ge crystal base met the needs, we did the technological experiments, through adopting the positive photoresist and negative photoresist, in the technological ways that coating before exposure and exposure before coating, respectively. We analyzed the measurement results, and came to the conclusion that the optimum matching scheme of reticle pattern processing technology for Ge crystal optical encoder was adopting the negative photoresist in accordance with the exposure before coating. Experimental results show that the finished graphic pattern has obvious contrast, the asymmetry distribution of edge is lower than 0.008 mm. It can be applied to the manufacture of the reticle pattern on Ge base. ©, 2015, The No. 205 Research Institute of China Ordnance Industry. All right reserved.


Chen X.-H.,Henan Pingyuan Optics Electronics Co. | Zhang C.-Q.,Henan Pingyuan Optics Electronics Co. | Tian X.-Q.,Henan Pingyuan Optics Electronics Co. | Liu H.,Henan Pingyuan Optics Electronics Co.
Proceedings of SPIE - The International Society for Optical Engineering | Year: 2010

Lightweight mirror is a key part in image-stabilized day/night optoelectronic observe/aim system. It is made of special structure titanium alloy base with sintered layer of optical glass. To meet with the requirement to reduce weight, honeycomb structure is adopted on the titanium alloy substrate. The depth of the optical glass is very thin. Due to its special & complex structure, high index requirement on image-stabilized technology, technology efficiency is very low with traditional polishing, and the quality is not stable. The loop polishing machine characterized with its stressless machining, is a kind of plain polishing machine tool, which has unique advantage in plain polishing machining of high accuracy large size and extra thin, changeable optical elements. We adopt loop-polishing technology in large area lightweight mirror machining. After parts fine grinding, first we adopt traditional polishing technique to conform pre-polishing for parts, then perform stressless polishing in loop polishing machine. Via tests and batch production, it solves the technical problems such as facial contour control and surface quality of the large area lightweight mirror; its working efficiency is 3-5 times than the traditional polishing technology. © 2010 Copyright SPIE - The International Society for Optical Engineering.

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