萬能試驗機鋼筋反向彎曲試驗夾具、鋼筋反向彎曲試驗裝置、鋼筋反向彎曲試驗夾具適用于《GB/T1499.2-2018鋼筋混凝土用鋼 第2部分：熱軋帶肋鋼筋》是一種結構簡單，工作穩定可靠，能提供準確且足夠承載力的反向彎曲支點的夾具 。

萬能試驗機鋼筋反向彎曲試驗夾具試驗方法：

    鋼(gang)筋(jin)(jin)反(fan)(fan)向(xiang)(xiang)(xiang)彎(wan)曲(qu)(qu)(qu)試驗裝置(zhi)是對鋼(gang)筋(jin)(jin)進行平面正(zheng)、反(fan)(fan)向(xiang)(xiang)(xiang)彎(wan)曲(qu)(qu)(qu)試驗的設(she)備(bei)。該設(she)備(bei)技(ji)術參(can)數和指標符合鋼(gang)筋(jin)(jin)平面反(fan)(fan)向(xiang)(xiang)(xiang)彎(wan)曲(qu)(qu)(qu)方法的要求。該產品廣泛(fan)應用于(yu)冶(ye)金、機械(xie)制(zhi)造業(ye)、建筑施工業(ye)、工程監(jian)理、技(ji)術質量監(jian)督等(deng)單位，以(yi)檢驗各種鋼(gang)筋(jin)(jin)正(zheng)向(xiang)(xiang)(xiang)、反(fan)(fan)向(xiang)(xiang)(xiang)彎(wan)曲(qu)(qu)(qu)的機械(xie)性能(neng)。所述的壓緊(jin)臂通過手(shou)輪旋轉絲(si)桿連接(jie)壓緊(jin)于(yu)鋼(gang)筋(jin)(jin)試樣(yang)上。鋼(gang)筋(jin)(jin)反(fan)(fan)向(xiang)(xiang)(xiang)彎(wan)曲(qu)(qu)(qu)試驗裝置(zhi)在鋼(gang)筋(jin)(jin)平面反(fan)(fan)向(xiang)(xiang)(xiang)彎(wan)曲(qu)(qu)(qu)試驗過程中(zhong)，試樣(yang)正(zheng)向(xiang)(xiang)(xiang)彎(wan)曲(qu)(qu)(qu)90°后，通過油缸活塞推動反(fan)(fan)向(xiang)(xiang)(xiang)彎(wan)曲(qu)(qu)(qu)支點運行至(zhi)鋼(gang)筋(jin)(jin)承受正(zheng)向(xiang)(xiang)(xiang)彎(wan)曲(qu)(qu)(qu)最(zui)大變形區，提供準確且足夠承載力的反(fan)(fan)向(xiang)(xiang)(xiang)彎(wan)曲(qu)(qu)(qu)支點，以(yi)進行反(fan)(fan)向(xiang)(xiang)(xiang)彎(wan)曲(qu)(qu)(qu)試驗。

    為(wei)(wei)克服解決(jue)GW系列鋼(gang)(gang)筋(jin)彎(wan)(wan)曲(qu)(qu)(qu)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)機在(zai)執行(xing)《GB/T1499.2-2018鋼(gang)(gang)筋(jin)混凝(ning)土用鋼(gang)(gang)第2部分：熱軋帶(dai)肋鋼(gang)(gang)筋(jin)》中規定“反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)：先(xian)正向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)90°后再反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)20°”的試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)操作時(shi)，遇到的諸如(ru)反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)支(zhi)點不(bu)(bu)夠（特別是大規格(ge)、高級(ji)別的鋼(gang)(gang)筋(jin)試(shi)(shi)(shi)(shi)(shi)(shi)樣在(zai)進(jin)行(xing)反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)時(shi)，試(shi)(shi)(shi)(shi)(shi)(shi)樣會滑(hua)動(dong)，找(zhao)不(bu)(bu)到反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)支(zhi)點而無(wu)(wu)法完成試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)）、彎(wan)(wan)曲(qu)(qu)(qu)角度難以控制(zhi)、操作不(bu)(bu)方便、安全有隱患、工(gong)作效率(lv)低的實際操作問題。能夠在(zai)滿足標準(zhun)的前提(ti)下，通(tong)過該(gai)裝置(zhi)(zhi)，為(wei)(wei)不(bu)(bu)同規格(ge)的鋼(gang)(gang)筋(jin)平面反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)時(shi)提(ti)供準(zhun)確且足夠承載力的反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)支(zhi)點，無(wu)(wu)需反(fan)(fan)(fan)轉(zhuan)試(shi)(shi)(shi)(shi)(shi)(shi)樣，減輕勞動(dong)強(qiang)度，方便輕松地進(jin)行(xing)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)。鋼(gang)(gang)筋(jin)反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)裝置(zhi)(zhi)能為(wei)(wei)不(bu)(bu)同規格(ge)、級(ji)別的鋼(gang)(gang)筋(jin)在(zai)進(jin)行(xing)反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)時(shi)提(ti)供足夠承載力的反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)支(zhi)點，不(bu)(bu)用翻動(dong)、調(diao)整試(shi)(shi)(shi)(shi)(shi)(shi)樣位置(zhi)(zhi)尋找(zhao)反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)支(zhi)點，簡單可(ke)靠，提(ti)高工(gong)作效率(lv)和(he)(he)設(she)備利(li)用率(lv)。試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)證明本實用新型裝置(zhi)(zhi)可(ke)靠、實用，有效降低試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)員勞動(dong)強(qiang)度，滿足鋼(gang)(gang)筋(jin)彎(wan)(wan)曲(qu)(qu)(qu)和(he)(he)反(fan)(fan)(fan)向(xiang)(xiang)(xiang)(xiang)(xiang)彎(wan)(wan)曲(qu)(qu)(qu)試(shi)(shi)(shi)(shi)(shi)(shi)驗(yan)(yan)(yan)的需要。

反復彎曲試驗操作流程：

*步：

首先在(zai)300KN或(huo)者600KN-1000KN萬能(neng)機上，用冷彎沖頭裝(zhuang)置把鋼筋彎曲到30度角。

第二步：

安(an)裝(zhuang)新標準的鋼(gang)筋(jin)反復彎曲裝(zhuang)置，可以安(an)裝(zhuang)在(zai)任(ren)何品牌的300KN-600KN-1000KN的萬能試(shi)驗(yan)機上。把前面彎到(dao)(dao)90度鋼(gang)筋(jin)放到(dao)(dao)反復彎曲裝(zhuang)置上彎到(dao)(dao)110度試(shi)驗(yan)結束。