西安不鏽鋼板的折彎特性

摘要：<span style="font-family:宋體;font-size:small;"> </span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;"><span style="font-size:small;">西安不鏽鋼板的折彎特性</span></span><span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">1、</span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">因?qū)嵝员绕胀ǖ吞间摬睿由炻实?，?dǎo)致所需變形力大</span><span lang="EN-US"><span style="font-family:'Times New Roman';">;</span></span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">2、</span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">不鏽鋼板料在折彎時(shí)與碳鋼相比有強(qiáng)烈的回彈傾向</span><span lang="EN-US"><span style="font-family:'Times New Roman';">;</span></span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">3、</span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">不鏽鋼板相對(duì)於碳鋼由於延伸率低，</span></span><span style="font-family:'Times New Roman';font-size:small;"> </span><span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">折彎時(shí)工件折彎角</span><span style="font-family:'Times New Roman';"><span lang="EN-US">R</span></span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">要大於碳鋼，否則有出現(xiàn)裂紋的可能</span><span lang="EN-US"><span style="font-family:'Times New Roman';">;</span></span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">4、</span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">由於不鏽鋼板硬度高，冷作硬化效應(yīng)顯著因此在選擇壓彎刀具時(shí)要選擇熱處理硬度應(yīng)達(dá)到</span><span style="font-family:'Times New Roman';"><span lang="EN-US">60HRC</span></span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">以上的工具鋼，</span></span><span style="font-family:'Times New Roman';font-size:small;"> </span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;"><span style="font-size:small;">其表麵粗糙度要比碳鋼的壓彎刀具高一個(gè)數(shù)量級(jí)。</span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;"><span style="font-size:small;">西安不鏽鋼板的折彎特性，一般來(lái)說(shuō)：</span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">1、</span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">單位尺寸下，板材越厚，所需折彎力越大，而且隨著板厚增大在選擇折彎設(shè)備時(shí)折彎力的裕量應(yīng)該更大</span><span lang="EN-US"><span style="font-family:'Times New Roman';">;</span></span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">2、</span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">單位尺寸下，抗拉強(qiáng)度越大，延伸率越小，所需折彎力越大，折彎角應(yīng)該越大</span><span lang="EN-US"><span style="font-family:'Times New Roman';">;</span></span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">3、</span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">設(shè)計(jì)圖中板厚與折彎半徑對(duì)應(yīng)情況下，根據(jù)經(jīng)驗(yàn)，一道彎工件的展開(kāi)尺寸為直角邊相加減去兩個(gè)板厚，完全可以滿足設(shè)計(jì)精度要求，根據(jù)經(jīng)驗(yàn)公式計(jì)</span></span><span style="font-family:'Times New Roman';font-size:small;"> </span><span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">算展開(kāi)量可簡(jiǎn)化計(jì)算過(guò)程大大提高生產(chǎn)效率</span><span lang="EN-US"><span style="font-family:'Times New Roman';">;</span></span></span> </p> <span style="font-family:宋體;font-size:small;"> </span> <p style="margin:0cm 0cm 0pt;"> <span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">4、</span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">材質(zhì)的屈服強(qiáng)度越大，彈性</span></span><span style="font-family:'Times New Roman';font-size:small;"> </span><span style="font-size:small;"><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">回複量就越大，為獲得折彎件</span><span style="font-family:'Times New Roman';"><span lang="EN-US">90</span></span><span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New Roman&quot;;">度的角度，所需壓刀的角度就要設(shè)計(jì)的越小。相對(duì)於碳鋼相同板厚的不鏽鋼折彎角較大，這一點(diǎn)應(yīng)特彆注意否則會(huì)出現(xiàn)壓彎裂紋，影響工件強(qiáng)度。</span></span> </p> <span style="font-family:宋體;font-size:small;"> </span><span lang="EN-US"><span style="font-family:'Times New Roman';font-size:small;"> <p style="margin:0cm 0cm 0pt;"> <span style="font-family:宋體;mso-ascii-font-family:&quot;Times New Roman&quot;;mso-hansi-font-family:&quot;Times New 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