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成果報告書詳細
管理番号20170000000383
タイトル*平成28年度中間年報 SIP(戦略的イノベーション創造プログラム)/革新的設計生産技術 市場流通材のスーパーメタル化開発 
公開日2017/6/7
報告書年度2016 - 2016
委託先名国立大学法人長岡技術科学大学
プロジェクト番号P14030
部署名IoT推進部
和文要約
英文要約Title:SIP (Cross-Ministerial Strategic Innovation Promotion Program) / Innovative Design/Manufacturing Technologies Development of super metals by processing of metallic raw materials (FY2014-FY2018) FY2016 Annual Report

A face contact type friction testing machine was designed and used to evaluate friction coefficient and seizure at high temperatures. Although a general pin-on-disk test is difficult to evaluate anti-seizure performance of sulphonitrided tool steels, the face contact type one is able to distinguish better performance of sulphonitrided samples. Several dies to fabricate connecting-rods were used in real forging process for investigating wear behaviour. A combination process of sulphonitrding and post-nitriding is less wear than nitriding process and sulphonitriding ones.
We have investigated a corrosion resistive stainless steel prepared by nitriding heat treatment. We modified the preparation procedure of the nitrided stainless steel, resulted that the corrosion current is significantly suppressed for the Ni-free stainless steel. However, a small temperature graduation considerably increases the corrosion current. To prepare a stable corrosion-resistive sample, a fine temperature controllable furnace is needed. Then, an advanced infrared furnace has been introduced so that high rate heating and cooling is available for preparing the sample.
Plating process and condition was investigated using “on-Demand plating bath” equipped on the manufacturing sites. First, Ni electroplating was conducted with and without using a shielding apparatus prepared by 3D printer system for evaluating the irregularity in the plated film thickness. As a result, a large disparity in the thickness was observed at the edge and tip of the substrate. Next, for the thickness distribution of the plated sample without the shielding apparatus, a simulation data carried out well agreed with the experimental one. Our next challenge is to perform a simulation of plated thickness distribution when a designed shielding apparatus is used to optimize the distribution.
High Sliding Ni/P Nano-Daimond plating. Reducing the loss of the sliding parts of the mechanical devices can contribute to energy saving. In this research, we are developing Ni/P plating containing nano-diamond particles on the surface of mechanical parts for the purpose of high sliding. Continuous testing was completed in order to make practical nano-diaomond plating and scroll plating. 1) As a result of the wireless nano plating, the scroll air compressor could be formed to a uniform plating thickness of 10m for the scroll aluminium surface. 2) The air compression continuous test of 1100 hours was carried out, and the initial properties were not changed, so the viability of the nano-plating was confirmed.
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