不銹鋼(gang)瓦楞形板(ban)是(shi)不銹鋼(gang)寬(kuan)幅型鋼(gang)的(de)(de)一種(zhong)，由于其(qi)形狀如同頂(ding)上用瓦片鋪成的(de)(de)行列隆起部分，故稱為在線亞洲日產一區二區:不銹鋼瓦楞形板，如圖5-37所(suo)示。

 人們過(guo)去常見的(de)(de)(de)“瓦楞（形(xing)(xing)）板(ban)”大都是(shi)用普通低碳鋼，也就是(shi)非合金鋼材(cai)(cai)(cai)料(liao)制成(cheng)的(de)(de)(de)（見圖5-38),還有用非金屬(shu)材(cai)(cai)(cai)料(liao)如石棉(mian)、塑料(liao)、紙板(ban)等制成(cheng)的(de)(de)(de)瓦楞形(xing)(xing)板(ban)。這些瓦楞形(xing)(xing)板(ban)主要(yao)(yao)用于建筑(zhu)領域(yu)的(de)(de)(de)屋頂材(cai)(cai)(cai)料(liao)、外墻材(cai)(cai)(cai)料(liao)和(he)各(ge)種包裝箱(xiang)體的(de)(de)(de)外形(xing)(xing)材(cai)(cai)(cai)料(liao)和(he)產品包裝箱(xiang)、盒等，之所以做成(cheng)瓦楞形(xing)(xing)狀，主要(yao)(yao)目的(de)(de)(de)是(shi)增加結(jie)構剛度和(he)穩定性(xing)。因(yin)此，其(qi)尺寸精度和(he)表面質量(liang)要(yao)(yao)求及(ji)材(cai)(cai)(cai)質要(yao)(yao)求都不是(shi)很高。

 此處介(jie)紹的(de)(de)(de)不銹鋼(gang)(gang)(gang)瓦(wa)(wa)楞(leng)(leng)(leng)形(xing)(xing)(xing)板(ban)與普通的(de)(de)(de)“瓦(wa)(wa)楞(leng)(leng)(leng)（形(xing)(xing)(xing)）板(ban)”有著本質的(de)(de)(de)不同(tong)，首(shou)先材料是不銹鋼(gang)(gang)(gang)，無疑要比普通的(de)(de)(de)“瓦(wa)(wa)楞(leng)(leng)(leng)（形(xing)(xing)(xing)）板(ban)”具有更高的(de)(de)(de)強度、良(liang)好的(de)(de)(de)耐腐蝕性(xing)(xing)能(neng)(neng)和極好的(de)(de)(de)裝飾效果，另外(wai)在結構上(shang)也大不相同(tong)。這些都賦(fu)予了(le)不銹鋼(gang)(gang)(gang)瓦(wa)(wa)楞(leng)(leng)(leng)形(xing)(xing)(xing)板(ban)不僅具有普通“瓦(wa)(wa)楞(leng)(leng)(leng)形(xing)(xing)(xing)板(ban)”的(de)(de)(de)各(ge)種(zhong)功(gong)能(neng)(neng)與作用(yong)(yong)，而(er)且具有普通“瓦(wa)(wa)楞(leng)(leng)(leng)（形(xing)(xing)(xing)）板(ban)”沒有的(de)(de)(de)功(gong)能(neng)(neng)，即不銹鋼(gang)(gang)(gang)瓦(wa)(wa)楞(leng)(leng)(leng)形(xing)(xing)(xing)板(ban)可以作為傳(chuan)熱(re)元(yuan)件使用(yong)(yong)。作為傳(chuan)熱(re)元(yuan)件，對其各(ge)方面的(de)(de)(de)要求就(jiu)(jiu)比普通“瓦(wa)(wa)楞(leng)(leng)(leng)（形(xing)(xing)(xing)）板(ban)”高得多，特別是對瓦(wa)(wa)楞(leng)(leng)(leng)形(xing)(xing)(xing)板(ban)表觀(guan)的(de)(de)(de)要求。對瓦(wa)(wa)楞(leng)(leng)(leng)形(xing)(xing)(xing)板(ban)表觀(guan)的(de)(de)(de)要求主要體現在對外(wai)形(xing)(xing)(xing)尺寸和表面質量的(de)(de)(de)要求上(shang)。因此，采用(yong)(yong)何種(zhong)方式、何種(zhong)工藝加(jia)工生(sheng)產(chan)不銹鋼(gang)(gang)(gang)瓦(wa)(wa)楞(leng)(leng)(leng)形(xing)(xing)(xing)板(ban)就(jiu)(jiu)成為保證其外(wai)形(xing)(xing)(xing)尺寸和質量的(de)(de)(de)關鍵。其他性(xing)(xing)能(neng)(neng)（機械性(xing)(xing)能(neng)(neng)、耐腐蝕性(xing)(xing)能(neng)(neng)和焊接(jie)性(xing)(xing)能(neng)(neng)）主要取(qu)決于(yu)所選用(yong)(yong)的(de)(de)(de)材料。

1. 不銹鋼瓦楞形板外形尺寸(cun)

 從圖5-37和(he)圖5-39可以(yi)看出不銹鋼(gang)瓦楞形板(ban)的(de)外表(biao)形狀(zhuang)(zhuang)是(shi)有(you)(you)(you)規律(lv)、周期性變化的(de)，而(er)且彎曲深度較小、形狀(zhuang)(zhuang)單(dan)一(yi)，不僅有(you)(you)(you)橫(heng)向波(bo)紋(wen)(wen)，而(er)且還(huan)有(you)(you)(you)縱(zong)向波(bo)紋(wen)(wen)。所以(yi)說，其形狀(zhuang)(zhuang)既(ji)簡單(dan)又復(fu)雜，簡單(dan)是(shi)指形狀(zhuang)(zhuang)單(dan)一(yi)，有(you)(you)(you)規律(lv)；復(fu)雜是(shi)指不僅有(you)(you)(you)橫(heng)向波(bo)紋(wen)(wen)，而(er)且還(huan)有(you)(you)(you)縱(zong)向波(bo)紋(wen)(wen)。這就給不銹鋼(gang)瓦楞形板(ban)的(de)成(cheng)型帶來不小的(de)難度，在成(cheng)型工藝上必須(xu)采取相應的(de)工藝措施(shi)和(he)手段，方能(neng)保證(zheng)獲(huo)得要求的(de)外形尺寸和(he)成(cheng)型質(zhi)量(liang)。

 圖(tu)(tu)5-39是(shi)不銹鋼瓦楞形(xing)(xing)板的(de)實物照片(pian)，從圖(tu)(tu)片(pian)可以看出，不銹鋼瓦楞形(xing)(xing)板的(de)外表和形(xing)(xing)狀(zhuang)是(shi)非常(chang)美觀(guan)(guan)、漂(piao)亮的(de)，具(ju)有較(jiao)高的(de)觀(guan)(guan)賞(shang)性，如同工(gong)藝品(pin)、裝飾品(pin)。

 圖5-39不銹鋼(gang)瓦楞形(xing)板A-A截(jie)面尺(chi)寸，見圖5-40,B-B截(jie)面尺(chi)寸，見圖5-41。

 不銹(xiu)鋼(gang)瓦楞形板成品實物斷面圖(tu)(tu)片，見圖(tu)(tu)5-40(b)和(he)圖(tu)(tu)5-41(b)。

 從圖5-40和圖5-41可以(yi)看(kan)出，不銹鋼瓦(wa)楞形(xing)板的斷面(mian)變化的規律是周期(qi)性的，斷面(mian)形(xing)狀是關于縱向中心線為對(dui)稱的型鋼，彎(wan)曲深度較(jiao)淺，深度僅有7mm。

 不銹鋼瓦楞形板外形尺寸精度：截面最(zui)(zui)大邊(bian)長誤(wu)差≤0.3mm;圓(yuan)角最(zui)(zui)大直徑：≤2.0mm;縱向、橫向彎(wan)曲度：每米≤1mm; 扭轉(zhuan)：每米≤1°。

2. 瓦楞形(xing)板橫(heng)向波紋的成(cheng)型

 不(bu)銹鋼(gang)瓦楞形(xing)(xing)(xing)(xing)板輥式冷(leng)彎成(cheng)(cheng)(cheng)型(xing)(xing)時，首(shou)先將不(bu)銹鋼(gang)冷(leng)軋平板預(yu)彎曲(qu)鐓壓(ya)(ya)成(cheng)(cheng)(cheng)弧(hu)(hu)形(xing)(xing)(xing)(xing)波紋，如(ru)圖5-42所示的(de)第(di)一(yi)架成(cheng)(cheng)(cheng)型(xing)(xing)輥孔形(xing)(xing)(xing)(xing)的(de)形(xing)(xing)(xing)(xing)狀(zhuang)。輥形(xing)(xing)(xing)(xing)的(de)形(xing)(xing)(xing)(xing)狀(zhuang)為(wei)(wei)，向(xiang)(xiang)下(xia)彎曲(qu)的(de)弧(hu)(hu)形(xing)(xing)(xing)(xing)直(zhi)(zhi)徑為(wei)(wei)Φ=265mm,向(xiang)(xiang)上彎曲(qu)的(de)弧(hu)(hu)形(xing)(xing)(xing)(xing)直(zhi)(zhi)徑為(wei)(wei)Φ=164mm,帶鋼(gang)進(jin)入并通過如(ru)此輥型(xing)(xing)是(shi)毫不(bu)困難(nan)的(de)，一(yi)個波長（周期(qi)）為(wei)(wei)83.40mm,弧(hu)(hu)深度（垂直(zhi)(zhi)位移）為(wei)(wei)4.12mm,這個成(cheng)(cheng)(cheng)型(xing)(xing)形(xing)(xing)(xing)(xing)狀(zhuang)無論是(shi)在(zai)變形(xing)(xing)(xing)(xing)寬(kuan)度上，還是(shi)變形(xing)(xing)(xing)(xing)深度上都是(shi)可(ke)行(xing)的(de)和符(fu)合要求的(de)。一(yi)個波長（周期(qi)）橫(heng)向(xiang)(xiang)位移（減(jian)寬(kuan)量）為(wei)(wei)0.60mm,相(xiang)對減(jian)寬(kuan)率（橫(heng)向(xiang)(xiang)位移）為(wei)(wei)0.71%,見圖5-42,如(ru)此的(de)位移（減(jian)寬(kuan)量）不(bu)會對鐓壓(ya)(ya)成(cheng)(cheng)(cheng)型(xing)(xing)造(zao)成(cheng)(cheng)(cheng)困難(nan)和產生成(cheng)(cheng)(cheng)型(xing)(xing)缺陷，這些都為(wei)(wei)第(di)二架成(cheng)(cheng)(cheng)型(xing)(xing)輥再鐓壓(ya)(ya)創造(zao)了條件。

 第(di)二(er)架(jia)成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)輥(gun)(gun)在(zai)第(di)一(yi)架(jia)成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)輥(gun)(gun)的(de)(de)鐓(dui)壓(ya)(ya)(ya)基礎(chu)上(shang)，再(zai)次鐓(dui)壓(ya)(ya)(ya)，使其達到(dao)如圖5-42所(suo)示的(de)(de)孔形(xing)(xing)(xing)形(xing)(xing)(xing)狀(zhuang)，弧(hu)度直徑分別為(wei)(wei)(wei)Φ=133mm和(he)p=82mm,一(yi)個(ge)波長(chang)(chang)（周期）為(wei)(wei)(wei)81.70mm、弧(hu)深度為(wei)(wei)(wei)8.18mm,這(zhe)(zhe)就是說寬(kuan)度和(he)深度更(geng)接近于成(cheng)(cheng)(cheng)(cheng)品形(xing)(xing)(xing)狀(zhuang)，而相(xiang)對(dui)(dui)減(jian)(jian)寬(kuan)量(liang)（水(shui)平(ping)位(wei)移(yi)）僅為(wei)(wei)(wei)1.42mm,相(xiang)對(dui)(dui)減(jian)(jian)寬(kuan)率（水(shui)平(ping)方(fang)向(xiang)(xiang)）為(wei)(wei)(wei)1.7%,要(yao)比第(di)一(yi)道次大了許多，這(zhe)(zhe)是符合開(kai)始小一(yi)些(xie)、中間大一(yi)些(xie)的(de)(de)成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)規律(lv)要(yao)求的(de)(de)，見第(di)三架(jia)成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)輥(gun)(gun)在(zai)第(di)二(er)架(jia)成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)輥(gun)(gun)的(de)(de)鐓(dui)壓(ya)(ya)(ya)基礎(chu)上(shang)，再(zai)鐓(dui)壓(ya)(ya)(ya)，使其達到(dao)如圖5-42所(suo)示的(de)(de)孔形(xing)(xing)(xing)形(xing)(xing)(xing)狀(zhuang)，這(zhe)(zhe)時將已經(jing)成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)的(de)(de)弧(hu)形(xing)(xing)(xing)瓦楞(leng)形(xing)(xing)(xing)鐓(dui)壓(ya)(ya)(ya)成(cheng)(cheng)(cheng)(cheng)梯(ti)形(xing)(xing)(xing)狀(zhuang)瓦楞(leng)形(xing)(xing)(xing)，而一(yi)個(ge)波長(chang)(chang)（周期）為(wei)(wei)(wei)80mm,相(xiang)對(dui)(dui)減(jian)(jian)寬(kuan)量(liang)（水(shui)平(ping)位(wei)移(yi)）僅為(wei)(wei)(wei)2.28mm,一(yi)個(ge)波長(chang)(chang)（周期）相(xiang)對(dui)(dui)減(jian)(jian)寬(kuan)率（水(shui)平(ping)方(fang)向(xiang)(xiang)）為(wei)(wei)(wei)2.79%.通過(guo)鐓(dui)壓(ya)(ya)(ya)使弧(hu)深由8.18mm減(jian)(jian)小為(wei)(wei)(wei)7.00mm,這(zhe)(zhe)樣可(ke)使梯(ti)形(xing)(xing)(xing)成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)更(geng)加精確到(dao)位(wei)，為(wei)(wei)(wei)最(zui)后(hou)沖壓(ya)(ya)(ya)成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)達到(dao)成(cheng)(cheng)(cheng)(cheng)品形(xing)(xing)(xing)狀(zhuang)及尺寸(cun)奠定(ding)良好的(de)(de)基礎(chu)，此時，橫向(xiang)(xiang)鐓(dui)壓(ya)(ya)(ya)成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)已全部完成(cheng)(cheng)(cheng)(cheng)，隨(sui)后(hou)將采(cai)用沖壓(ya)(ya)(ya)成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)輥(gun)(gun)在(zai)已成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)橫向(xiang)(xiang)波紋上(shang)完成(cheng)(cheng)(cheng)(cheng)最(zui)終成(cheng)(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)(xing)(xing)。

 圖5-42是各(ge)架(jia)次成型輥(gun)輥(gun)形尺寸圖。

 第三架成(cheng)(cheng)型(xing)輥(gun)(gun)輥(gun)(gun)形(xing)圖和孔(kong)形(xing)圖，見圖5-43.第三架成(cheng)(cheng)型(xing)輥(gun)(gun)應是由多(duo)片輥(gun)(gun)片疊加(jia)(jia)組(zu)合而(er)成(cheng)(cheng)的(de)(de)(de)組(zu)合輥(gun)(gun)，輥(gun)(gun)片的(de)(de)(de)水平段(duan)和圓(yuan)(yuan)弧段(duan)采取(qu)與(yu)(yu)板(ban)材接觸的(de)(de)(de)方式，而(er)傾斜段(duan)則采取(qu)與(yu)(yu)板(ban)材不接觸的(de)(de)(de)方式，為的(de)(de)(de)是減少成(cheng)(cheng)型(xing)表面(mian)的(de)(de)(de)擦劃傷，此(ci)外，如此(ci)結構也(ye)將(jiang)便于成(cheng)(cheng)型(xing)輥(gun)(gun)的(de)(de)(de)加(jia)(jia)工和隨后(hou)的(de)(de)(de)使用與(yu)(yu)維護等。上、下(xia)輥(gun)(gun)斜角(jiao)采取(qu)圓(yuan)(yuan)弧過(guo)(guo)渡，一般情況下(xia)，圓(yuan)(yuan)弧的(de)(de)(de)直徑(jing)應大于板(ban)厚，所以圖5-43所示的(de)(de)(de)第三架上、下(xia)輥(gun)(gun)斜角(jiao)的(de)(de)(de)圓(yuan)(yuan)弧過(guo)(guo)渡直徑(jing)為2.0mm,見圖5-43局部放大圖。

3. 縱向(xiang)波紋的成(cheng)型

 縱(zong)向(xiang)(xiang)波(bo)(bo)(bo)紋(wen)(wen)的(de)(de)成(cheng)型(xing)(xing)(xing)是在(zai)(zai)橫向(xiang)(xiang)波(bo)(bo)(bo)紋(wen)(wen)成(cheng)型(xing)(xing)(xing)之后(hou)的(de)(de)橫向(xiang)(xiang)波(bo)(bo)(bo)紋(wen)(wen)上成(cheng)型(xing)(xing)(xing)的(de)(de)。所以在(zai)(zai)已成(cheng)型(xing)(xing)(xing)的(de)(de)波(bo)(bo)(bo)紋(wen)(wen)上再成(cheng)型(xing)(xing)(xing)縱(zong)向(xiang)(xiang)波(bo)(bo)(bo)紋(wen)(wen)是有難(nan)度的(de)(de)。其難(nan)度主要表(biao)現(xian)為，可能破壞已成(cheng)型(xing)(xing)(xing)的(de)(de)橫向(xiang)(xiang)波(bo)(bo)(bo)紋(wen)(wen)，而且縱(zong)向(xiang)(xiang)波(bo)(bo)(bo)紋(wen)(wen)也成(cheng)型(xing)(xing)(xing)不好(hao)。選用何種(zhong)方式成(cheng)型(xing)(xing)(xing)就成(cheng)為縱(zong)向(xiang)(xiang)波(bo)(bo)(bo)紋(wen)(wen)成(cheng)型(xing)(xing)(xing)的(de)(de)關鍵。

 沖(chong)壓(ya)(ya)(ya)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)輥(gun)(gun)就是(shi)(shi)在(zai)(zai)一對成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)輥(gun)(gun)上(shang)(shang)，按工藝和(he)(he)產品的(de)(de)(de)(de)(de)(de)(de)(de)要(yao)求，在(zai)(zai)要(yao)面上(shang)(shang)間(jian)隙分布著(zhu)凸(tu)起和(he)(he)凹陷的(de)(de)(de)(de)(de)(de)(de)(de)部(bu)分，用于(yu)壓(ya)(ya)(ya)制(zhi)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)瓦(wa)(wa)楞(leng)形板(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)(de)(de)縱向(xiang)(xiang)(xiang)波(bo)(bo)紋(wen)，同時又(you)不能損壞(huai)已(yi)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)橫(heng)向(xiang)(xiang)(xiang)梯(ti)形波(bo)(bo)紋(wen)，縱向(xiang)(xiang)(xiang)波(bo)(bo)紋(wen)尺寸圖及(ji)實物圖片，見(jian)圖5-40和(he)(he)圖5-41。之所(suo)以(yi)將沖(chong)壓(ya)(ya)(ya)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)輥(gun)(gun)置于(yu)橫(heng)向(xiang)(xiang)(xiang)波(bo)(bo)紋(wen)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)輥(gun)(gun)后(hou)、平(ping)整輥(gun)(gun)前(qian)，是(shi)(shi)為(wei)了保證(zheng)瓦(wa)(wa)楞(leng)形板(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)(de)(de)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)過程的(de)(de)(de)(de)(de)(de)(de)(de)穩定和(he)(he)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)質量。可以(yi)想象(xiang)，在(zai)(zai)沒有橫(heng)向(xiang)(xiang)(xiang)波(bo)(bo)紋(wen)的(de)(de)(de)(de)(de)(de)(de)(de)平(ping)板(ban)(ban)(ban)帶材(cai)(cai)上(shang)(shang)沖(chong)壓(ya)(ya)(ya)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)凸(tu)起和(he)(he)凹陷型(xing)(xing)(xing)(xing)(xing)材(cai)(cai)，由于(yu)自由度大沒有約(yue)束力(li)，沖(chong)壓(ya)(ya)(ya)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)會(hui)造成(cheng)(cheng)(cheng)坯料(liao)局(ju)部(bu)收縮，產生(sheng)皺折及(ji)其他缺陷，影響成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)質量和(he)(he)成(cheng)(cheng)(cheng)品的(de)(de)(de)(de)(de)(de)(de)(de)尺寸。另外，瓦(wa)(wa)楞(leng)形板(ban)(ban)(ban)型(xing)(xing)(xing)(xing)(xing)鋼截面受材(cai)(cai)料(liao)內部(bu)殘(can)余應(ying)力(li)作用，很容(rong)易產生(sheng)扭(niu)轉，這(zhe)也會(hui)影響成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)過程的(de)(de)(de)(de)(de)(de)(de)(de)穩定性。但在(zai)(zai)瓦(wa)(wa)楞(leng)形板(ban)(ban)(ban)橫(heng)向(xiang)(xiang)(xiang)波(bo)(bo)紋(wen)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)輥(gun)(gun)后(hou)、平(ping)整輥(gun)(gun)前(qian)，再用沖(chong)壓(ya)(ya)(ya)輥(gun)(gun)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)其縱向(xiang)(xiang)(xiang)波(bo)(bo)紋(wen)，此時，已(yi)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)的(de)(de)(de)(de)(de)(de)(de)(de)橫(heng)向(xiang)(xiang)(xiang)波(bo)(bo)紋(wen)使瓦(wa)(wa)楞(leng)形板(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)(de)(de)剛度增大，同時又(you)受到(dao)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)輥(gun)(gun)和(he)(he)平(ping)整輥(gun)(gun)的(de)(de)(de)(de)(de)(de)(de)(de)約(yue)束，其自由度就減小。以(yi)上(shang)(shang)這(zhe)些(xie)都可以(yi)有效地(di)防止局(ju)部(bu)收縮和(he)(he)型(xing)(xing)(xing)(xing)(xing)鋼的(de)(de)(de)(de)(de)(de)(de)(de)扭(niu)轉，從而對保證(zheng)瓦(wa)(wa)楞(leng)形板(ban)(ban)(ban)的(de)(de)(de)(de)(de)(de)(de)(de)成(cheng)(cheng)(cheng)型(xing)(xing)(xing)(xing)(xing)及(ji)質量起到(dao)有效的(de)(de)(de)(de)(de)(de)(de)(de)保障作用。瓦(wa)(wa)楞(leng)形板(ban)(ban)(ban)橫(heng)向(xiang)(xiang)(xiang)波(bo)(bo)紋(wen)沖(chong)壓(ya)(ya)(ya)輥(gun)(gun)的(de)(de)(de)(de)(de)(de)(de)(de)示意圖，見(jian)圖5-44。

 沖壓(ya)成型輥也(ye)應做成組(zu)合(he)式(shi)(shi)輥子，即由多輥片疊加(jia)組(zu)合(he)而成。這種形(xing)式(shi)(shi)的(de)輥子便于加(jia)工和維護，調整使用方便。