{"id":145,"date":"2024-11-04T05:52:59","date_gmt":"2024-11-04T05:52:59","guid":{"rendered":"https:\/\/pwhtsolutions.net\/?p=145"},"modified":"2025-01-05T09:24:45","modified_gmt":"2025-01-05T09:24:45","slug":"%e6%ba%b6%e6%8e%a5%e5%be%8c%e7%86%b1%e5%87%a6%e7%90%86","status":"publish","type":"post","link":"https:\/\/pwhtsolutions.net\/ja\/post-weld-heat-treatment-pwht-2\/","title":{"rendered":"\u6eb6\u63a5\u5f8c\u71b1\u51e6\u7406 (PWHT)"},"content":{"rendered":"

PWHT\uff08\u6eb6\u63a5\u5f8c\u71b1\u51e6\u7406\uff09\u306f\u3001\u5727\u529b\u6a5f\u5668\u304c\u9ad8\u6e29\u3084\u904e\u9177\u306a\u74b0\u5883\u306b\u8010\u3048\u3089\u308c\u308b\u3088\u3046\u306b\u3059\u308b\u305f\u3081\u306b\u4e0d\u53ef\u6b20\u3067\u3042\u308a\u3001\u6eb6\u63a5\u7d99\u624b\u304c\u53b3\u683c\u306a\u5b89\u5168\u57fa\u6e96\u306b\u6e96\u62e0\u3057\u3066\u3044\u308b\u3053\u3068\u3092\u4fdd\u8a3c\u3057\u307e\u3059\u3002<\/p>\n

PWHT\u306f\u3001\u9577\u3044\u52a0\u71b1\u30fb\u51b7\u5374\u30b5\u30a4\u30af\u30eb\u3092\u5fc5\u8981\u3068\u3057\u3001\u305d\u306e\u5b9f\u65bd\u306b\u7279\u5225\u306a\u88c5\u7f6e\u304c\u5fc5\u8981\u3067\u3042\u308b\u305f\u3081\u3001\u30b3\u30b9\u30c8\u304c\u9ad8\u304f\u3064\u304f\u3053\u3068\u304c\u3042\u308b\u3002<\/p>\n

\u30e1\u30ea\u30c3\u30c8<\/h2>\n

\u6eb6\u63a5\u306f\u3001\u77f3\u6cb9\uff08\u4e0a\u6d41\u3001\u4e2d\u6d41\u3001\u4e0b\u6d41\uff09\u304a\u3088\u3073\u5316\u5b66\u51e6\u7406\u7523\u696d\u3067\u6b20\u304f\u3053\u3068\u306e\u3067\u304d\u306a\u3044\u30d7\u30ed\u30bb\u30b9\u3067\u3059\u3002\u3053\u306e\u6f5c\u5728\u7684\u306a\u554f\u984c\u3092\u8efd\u6e1b\u3059\u308b\u305f\u3081\u3001\u6eb6\u63a5\u5f8c\u71b1\u51e6\u7406 (PWHT)\u3092\u5b9a\u671f\u7684\u306b\u5b9f\u65bd\u3057\u3001\u6b8b\u7559\u5fdc\u529b\u3092\u7de9\u548c\u3057\u3066\u6a5f\u5668\u3092\u3055\u3089\u306b\u5f37\u5316\u3059\u308b\u5fc5\u8981\u304c\u3042\u308a\u307e\u3059\u3002<\/p>\n

PWHT\u306f\u3001\u6eb6\u63a5\u90e8\u306e\u786c\u5ea6\u3092\u8457\u3057\u304f\u4f4e\u4e0b\u3055\u305b\u3001 \u6eb6\u63a5\u306b\u8d77\u56e0\u3059\u308b\u5fdc\u529b\u3092\u518d\u5206\u914d\u3057\u3001\u5ef6\u6027\u3068\u8010\u7834\u58ca \u6027\u3092\u9ad8\u3081\u308b\u305f\u3081\u306b\u5fae\u7d30\u69cb\u9020\u3092\u5909\u5316\u3055\u305b\u308b\u3053\u3068\u304c \u3067\u304d\u308b\u3002PWHT\u306f\u3001\u7279\u5b9a\u306e\u92fc\u7a2e\u307e\u305f\u306f\u677f\u539a\u306b\u5bfe\u3057\u3066\u898f\u683c \u3067\u7fa9\u52d9\u4ed8\u3051\u3089\u308c\u3066\u3044\u308b\u5834\u5408\u3082\u3042\u308c\u3070\u3001\u30b3\u30b9\u30c8\u3001\u5b89 \u5168\u6027\u3001\u52b9\u7387\u3092\u8003\u616e\u3057\u3066\u6c7a\u5b9a\u3055\u308c\u308b\u5834\u5408\u3082\u3042\u308b\u3002<\/p>\n

PWHT\u306e\u5229\u70b9\u306f\u591a\u3044\u304c\u3001\u5727\u529b\u5bb9\u5668\u3084\u914d\u7ba1\u306b\u4f7f\u7528\u3059\u308b\u5834\u5408\u3001\u304b\u306a\u308a\u306e\u30a8\u30cd\u30eb\u30ae\u30fc\u6d88\u8cbb\u3068\u6392\u51fa\u91cf\u306e\u5897\u52a0\u304c\u5fc5\u8981\u3068\u306a\u308a\u3001\u74b0\u5883\u554f\u984c\u306b\u3064\u306a\u304c\u308b\u53ef\u80fd\u6027\u304c\u3042\u308b\u3002\u5e78\u3044\u306a\u3053\u3068\u306b\u3001\u3053\u306e\u3088\u3046\u306a\u30b3\u30b9\u30c8\u306e\u304b\u304b\u308b\u71b1\u51e6\u7406\u3092\u5b8c\u5168\u306b\u6392\u9664\u3067\u304d\u308b\u4ee3\u66ff\u624b\u6bb5\u304c\u5b58\u5728\u3057\u307e\u3059\u3002<\/p>\n

Libratherm \u306f\u3001PWHT \u52a0\u71b1\u901f\u5ea6\u3092\u6b63\u78ba\u306b\u5236\u5fa1\u3057\u3001\u6240\u671b\u306e\u7d50\u679c\u3092\u5f97\u308b\u305f\u3081\u306e\u30b7\u30f3\u30b0\u30eb\u30be\u30fc\u30f3\u3068\u30de\u30eb\u30c1\u30be\u30fc\u30f3 PID \u30e9\u30f3\u30d7\u6d78\u6f2c\u30b3\u30f3\u30c8\u30ed\u30fc\u30e9\u3092\u63d0\u4f9b\u3057\u307e\u3059\u3002\u63a5\u5730\u307e\u305f\u306f\u975e\u63a5\u5730\u306e\u71b1\u96fb\u5bfe\u3092\u76f4\u63a5\u53d7\u3051\u5165\u308c\u3001PWM\u51fa\u529b\u7528\u306ePID\u5236\u5fa1\u52d5\u4f5c\u3067\u30a2\u30ca\u30ed\u30b0\u307e\u305f\u306fSSR\u51fa\u529b\u3092\u51fa\u529b\u3057\u307e\u3059\u3002RS-485\u4e0a\u306eMODBUS\u30a4\u30f3\u30bf\u30fc\u30d5\u30a7\u30fc\u30b9\u306b\u3088\u308a\u3001SCADA\u3001PLC\u3001\u30c7\u30fc\u30bf\u30ed\u30ae\u30f3\u30b0\u30b7\u30b9\u30c6\u30e0\u3078\u306e\u7d71\u5408\u3082\u5bb9\u6613\u3067\u3059\u3002<\/p>\n

\u5f53\u793e\u306ePWHT\u88c5\u7f6e\u306f\u3001\u65ad\u71b1\u30d6\u30e9\u30f3\u30b1\u30c3\u30c8\u3067\u71b1\u3092\u4fdd\u6301\u3057\u306a\u304c\u3089\u3001\u30ef\u30fc\u30af\u3092\u7d20\u65e9\u304f\u52a0\u71b1\u3059\u308b\u8a98\u5c0e\u30b3\u30a4\u30eb\u3092\u5099\u3048\u3066\u3044\u307e\u3059\u3002\u672c\u88c5\u7f6e\u306e\u5b89\u5168\u306a\u64cd\u4f5c\u306f\u3001\u975e\u5e38\u505c\u6b62\u30dc\u30bf\u30f3\u306b\u3088\u3063\u3066\u4fdd\u8a3c\u3055\u308c\u3001\u6e29\u5ea6\u6e2c\u5b9a\u5024\u306f\u76f4\u611f\u7684\u306a\u30bf\u30c3\u30c1\u30b9\u30af\u30ea\u30fc\u30f3\u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306b\u308f\u304b\u308a\u3084\u3059\u304f\u8868\u793a\u3055\u308c\u307e\u3059\u3002<\/p>","protected":false},"excerpt":{"rendered":"

PWHT (Post-Weld Heat Treatment) is essential in ensuring pressure equipment can withstand high temperatures and harsh environments, and ensures welded joints adhere to stringent safety standards. PWHT can be costly due to the long heating and cooling cycles required and special equipment necessary for its implementation. Advantages Welding is an indispensable process in the petroleum (upstream, midstream and downstream) and chemical processing industries. However, welding can inadvertently weaken equipment through creating residual stresses; to mitigate this potential issue a postweld heat treatment (PWHT) should be regularly undertaken in order to relieve these residual stresses and strengthen equipment further. PWHT can significantly decrease weld hardness, redistribute weld-induced stresses and alter microstructure … <\/p>\n

\u7d9a\u304d\u3092\u8aad\u3080 “Post-Weld Heat Treatment (PWHT)”<\/span><\/a><\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-145","post","type-post","status-publish","format-standard","hentry","category-product-related"],"aioseo_notices":[],"_links":{"self":[{"href":"https:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/posts\/145","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/comments?post=145"}],"version-history":[{"count":1,"href":"https:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/posts\/145\/revisions"}],"predecessor-version":[{"id":146,"href":"https:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/posts\/145\/revisions\/146"}],"wp:attachment":[{"href":"https:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/media?parent=145"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/categories?post=145"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/pwhtsolutions.net\/ja\/wp-json\/wp\/v2\/tags?post=145"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}