JP2008215941A - 温度管理用示温材およびその製造方法 - Google Patents
温度管理用示温材およびその製造方法 Download PDFInfo
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- JP2008215941A JP2008215941A JP2007051633A JP2007051633A JP2008215941A JP 2008215941 A JP2008215941 A JP 2008215941A JP 2007051633 A JP2007051633 A JP 2007051633A JP 2007051633 A JP2007051633 A JP 2007051633A JP 2008215941 A JP2008215941 A JP 2008215941A
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- temperature
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- welding
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Abstract
【解決手段】温度管理用示温材1は、鉄骨造の溶接時に管理すべきその鉄骨の加熱温度で熱溶融する融点を有しているイソフタル酸及びメラミンから選ばれる少なくとも一種類を含む熱溶融性物質と、ワニスとが、含有されており、柱状又は板状に成型され、それが嵌まる窪み6を有しつつ向き合っているアーム7a、7bの先端で挟まれつつ、該アームの先端の周囲を締付具2で締め付けているホルダー4によって脱落不能に把持されている。
【選択図】図1
Description
スーパーベッカミンL−105−60(大日本インキ化学工業株式会社製:商品名)の10重量%、アクリディックA−407(大日本インキ化学工業株式会社製:商品名)の30重量%、溶剤としてキシレン30重量%、トルエン30重量%を均一に混ぜた混合溶液を調製し、ワニスとした。イソフタル酸(和光純薬工業株式会社製 和光一級)500gに、染料(フタロシアニンブルー)2gおよびワニス100gを入れ品川式ライカイ機で1時間混和し、組成物(a)を調製した。その組成物(a)を口の広いプラスティック製バットに移し替え、2〜3日間自然乾燥させた。乾燥した組成物(a)を品川式ライカイ機で0.1〜0.5mm程度の粒子に粉砕した。この粉砕した組成物(a)を8g計量し、圧搾用金型に入れ、圧力10MPaで円柱状に圧搾した。それを120℃にて1時間恒温で加熱した後、放置することにより常温まで自然冷却すると、温度管理用示温材(A)が得られた。
メラミン500g(和光純薬工業株式会社製 和光特級)に、染料(セイカファストイエロー:大日精化工業株式会社製)5g、および実施例1で用いたのと同様なワニス100gを入れ品川式ライカイ機で1時間程度混和し、組成物(b)を調製した。その組成物(b)を口の広いプラスティック製バットに移し替え、2〜3日間自然乾燥させた。乾燥した組成物(b)を品川式ライカイ機で0.1〜0.5mm程度の粒子に粉砕した。この粉砕した組成物(b)を10g計量し、圧搾用金型に入れ、圧力10MPaで圧搾した。それを120℃にて1時間恒温で加熱した後、放置することにより常温まで自然冷却すると、温度管理用示温材(B)が得られた。
実施例1および2で得た温度管理用示温材(A)および(B)が、湿度に対する耐久性が高いことを確認する試験として、市販の従来型示温材(サーモクレヨン−M、M−345)との比較試験を行った。
Claims (5)
- 鉄骨造の溶接時に管理すべきその鉄骨の加熱温度で熱溶融する融点を有しているイソフタル酸及びメラミンから選ばれる少なくとも一種類を含む熱溶融性物質と、ワニスとが、含有されており、柱状又は板状に成型されていることを特徴とする温度管理用示温材。
- 有害重金属を非含有であることを特徴とする請求項1に記載の温度管理用示温材。
- 前記温度管理用示温材は、それが嵌まる窪みを有しつつ向き合っているアームの先端で挟まれつつ、該アームの先端の周囲を締付具で締め付けているホルダーによって、脱落不能に把持されていることを特徴とする請求項1に記載の温度管理用示温材。
- 鉄骨造の溶接時に加熱温度を管理すべき鉄骨の溶接部位へ、請求項1に記載の温度管理用示温材を、塗布し、擦り付け、線描きし、又は押し付けて、それの熱溶融の有無を確認することを特徴とする温度管理方法。
- 鉄骨造の溶接時に加熱温度を管理すべきその鉄骨の温度で熱溶融する融点を有しているイソフタル酸及びメラミンから選ばれる少なくとも一種類を含む熱溶融性物質と、ワニスとを混練し、その組成物を型に入れて、柱状又は板状に圧搾成型することを特徴とする温度管理用示温材の製造方法。
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