UPVC無縫鋼管的(de)食(shi)用的(de)環境(jing)(jing)溫(wen)(wen)濕(shi)度(du)(du)(du)界限為(wei)0-70℃,而UPVC鋼管之(zhi)食(shi)用的(de)環境(jing)(jing)溫(wen)(wen)濕(shi)度(du)(du)(du)普(pu)通(tong)以恒溫(wen)(wen)更為(wei)為(wei)宜,一旦食(shi)用的(de)環境(jing)(jing)溫(wen)(wen)濕(shi)度(du)(du)(du)增強,其(qi)抗壓力差抗拉(la)強度(du)(du)(du)之(zhi)比(bi)例(li)應比(bi)較多(duo)加(jia)減低,其(qi)所(suo)有的(de)環境(jing)(jing)溫(wen)(wen)濕(shi)度(du)(du)(du)下(xia)之(zhi)抗壓比(bi)例(li)一下(xia)表,可予參照(zhao)物按照(zhao)。
UPVC管利用高溫與抗(kang)壓之內在(zai)聯系
UPVC管的耐(nai)高溫能(neng)力(li)在主要耐(nai)壓檢(jian)(jian)(jian)(jian)驗(yan)中含特地的檢(jian)(jian)(jian)(jian)則做法步(bu)驟(zou)只是 維(wei)卡軟化劑溫差耐(nai)壓檢(jian)(jian)(jian)(jian)驗(yan)。下面來我(wo)分享下某項(xiang)耐(nai)壓檢(jian)(jian)(jian)(jian)驗(yan)的檢(jian)(jian)(jian)(jian)則目的意(yi)義與檢(jian)(jian)(jian)(jian)則做法步(bu)驟(zou)。
01實驗(yan)設(she)計目(mu)地:UPVC不銹(xiu)鋼管吸熱易于(yu)再次(ci)發生(sheng)發生(sheng)形變,以(yi)維(wei)卡水溫(wen)的多少來體現不銹(xiu)鋼管的耐低溫(wen)能力
02實(shi)驗專用(yong)設(she)備:維卡實(shi)驗機
03實驗(yan)室檢測代表:
(1)把巖(yan)樣存放(fang)液態(tai)物質導電介質中,在(zai)等速(su)升溫快先決條件(jian)下(xia)判斷規(gui)范壓針(橫截圓體積為1mm2)在(zai) 50 N力的功效下(xia), 壓入巖(yan)樣內lmm時的溫暖(nuan)(nuan),成為巖(yan)樣的維卡軟化劑(ji)溫暖(nuan)(nuan)( VST)。
(2)維卡軟化劑溫(wen)是(shi)判斷(duan)材料耐溫(wen)穩定性,體現(xian)肉(rou)食品在遇(yu)熱必(bi)要條(tiao)件下(xia)數學(xue)力學(xue)結構(gou)穩定性的標準之中(zhong)。
(3)維卡溶(rong)解熱(re)度越高,表面材質加熱(re)時的外形尺寸穩定可靠性越高,熱(re)和(he)(he)形變(bian)越小,即耐低溫和(he)(he)形變(bian)功能(neng)越高。
(4)國家標準需求PVC-U供(gong)(gong)水(shui)管(guan)子(zi)(zi)管(guan)維(wei)卡溶解環(huan)境的(de)(de)工(gong)作溫(wen)差≥80℃,我(wo)華亞東(dong)營(ying)市(shi)區(qu)塑料(liao)(liao)板(ban)材(cai)(cai)(cai)有(you)限(xian)的(de)(de)制的(de)(de)集團(tuan)(tuan)有(you)限(xian)的(de)(de)集團(tuan)(tuan)公(gong)司(si)制造的(de)(de)供(gong)(gong)水(shui)管(guan)子(zi)(zi)金屬塑料(liao)(liao)管(guan)材(cai)(cai)(cai)維(wei)卡環(huan)境的(de)(de)工(gong)作溫(wen)差通(tong)常(chang)在82~83℃。排水(shui)障礙(ai)管(guan)道(dao)(dao)金屬塑料(liao)(liao)管(guan)材(cai)(cai)(cai)國家標準需求維(wei)卡溶解環(huan)境的(de)(de)工(gong)作溫(wen)差≥79℃,我(wo)華亞東(dong)營(ying)市(shi)區(qu)塑料(liao)(liao)板(ban)材(cai)(cai)(cai)有(you)限(xian)的(de)(de)制的(de)(de)集團(tuan)(tuan)有(you)限(xian)的(de)(de)集團(tuan)(tuan)公(gong)司(si)制造的(de)(de)PVC-U排水(shui)障礙(ai)管(guan)道(dao)(dao)管(guan)維(wei)卡溶解環(huan)境的(de)(de)工(gong)作溫(wen)差通(tong)常(chang)在80~81℃。