福建多功能電動輥筒廠家哪個好
電(dian)(dian)(dian)動(dong)(dong)輥(gun)(gun)(gun)筒(tong)(tong)的(de)(de)構(gou)造:電(dian)(dian)(dian)機(ji)(ji)(ji):電(dian)(dian)(dian)動(dong)(dong)輥(gun)(gun)(gun)筒(tong)(tong)使(shi)用的(de)(de)電(dian)(dian)(dian)機(ji)(ji)(ji)一般為伺服(fu)電(dian)(dian)(dian)機(ji)(ji)(ji)或步進電(dian)(dian)(dian)機(ji)(ji)(ji),具(ju)有精度(du)高(gao)、響應(ying)快、穩定性(xing)好(hao)的(de)(de)特點(dian)。減速(su)(su)(su)機(ji)(ji)(ji):減速(su)(su)(su)機(ji)(ji)(ji)是(shi)電(dian)(dian)(dian)動(dong)(dong)輥(gun)(gun)(gun)筒(tong)(tong)的(de)(de)重要部(bu)件,它能(neng)夠將電(dian)(dian)(dian)機(ji)(ji)(ji)的(de)(de)轉速(su)(su)(su)降(jiang)低,從而輸出更大的(de)(de)扭(niu)矩。常用的(de)(de)減速(su)(su)(su)機(ji)(ji)(ji)有蝸輪蝸桿減速(su)(su)(su)機(ji)(ji)(ji)、諧波減速(su)(su)(su)機(ji)(ji)(ji)等(deng)。齒(chi)(chi)輪:齒(chi)(chi)輪是(shi)減速(su)(su)(su)機(ji)(ji)(ji)中的(de)(de)重要部(bu)件,它的(de)(de)精度(du)和強度(du)直接影(ying)響到整(zheng)個電(dian)(dian)(dian)動(dong)(dong)輥(gun)(gun)(gun)筒(tong)(tong)的(de)(de)性(xing)能(neng)。輥(gun)(gun)(gun)筒(tong)(tong):輥(gun)(gun)(gun)筒(tong)(tong)是(shi)電(dian)(dian)(dian)動(dong)(dong)輥(gun)(gun)(gun)筒(tong)(tong)的(de)(de)執行部(bu)分,它一般由筒(tong)(tong)體、軸(zhou)和軸(zhou)承(cheng)等(deng)部(bu)件組成。根據(ju)使(shi)用要求,輥(gun)(gun)(gun)筒(tong)(tong)的(de)(de)材質和長度(du)等(deng)參(can)數也(ye)有所不同。電(dian)(dian)(dian)動(dong)(dong)輥(gun)(gun)(gun)筒(tong)(tong)的(de)(de)電(dian)(dian)(dian)機(ji)(ji)(ji)采用先進的(de)(de)控(kong)(kong)制技術,可實(shi)現精確的(de)(de)速(su)(su)(su)度(du)和位置控(kong)(kong)制。福建多功能(neng)電(dian)(dian)(dian)動(dong)(dong)輥(gun)(gun)(gun)筒(tong)(tong)廠家(jia)哪個好(hao)
電動(dong)(dong)滾(gun)筒(tong)驅(qu)動(dong)(dong)器(qi)的(de)應用范圍(wei)比較多,包(bao)括但不限(xian)于(yu)以(yi)(yi)下領域(yu):物流輸送(song):在物流輸送(song)系統中,電動(dong)(dong)滾(gun)筒(tong)驅(qu)動(dong)(dong)器(qi)可(ke)(ke)(ke)以(yi)(yi)用于(yu)驅(qu)動(dong)(dong)輸送(song)帶(dai)或(huo)鏈條(tiao),實(shi)現貨物的(de)快(kuai)速(su)、穩定輸送(song)。包(bao)裝(zhuang)機(ji)械(xie)(xie):在包(bao)裝(zhuang)機(ji)械(xie)(xie)中,電動(dong)(dong)滾(gun)筒(tong)驅(qu)動(dong)(dong)器(qi)可(ke)(ke)(ke)以(yi)(yi)用于(yu)驅(qu)動(dong)(dong)包(bao)裝(zhuang)材(cai)料的(de)輸送(song)帶(dai)或(huo)鏈條(tiao),確(que)(que)保(bao)包(bao)裝(zhuang)過程的(de)順(shun)利(li)進行。印(yin)刷(shua)機(ji)械(xie)(xie):在印(yin)刷(shua)機(ji)械(xie)(xie)中,電動(dong)(dong)滾(gun)筒(tong)驅(qu)動(dong)(dong)器(qi)可(ke)(ke)(ke)以(yi)(yi)用于(yu)驅(qu)動(dong)(dong)印(yin)刷(shua)材(cai)料的(de)輸送(song)帶(dai)或(huo)鏈條(tiao),確(que)(que)保(bao)印(yin)刷(shua)質(zhi)量和(he)效率。其他行業:除上述行業外,電動(dong)(dong)滾(gun)筒(tong)驅(qu)動(dong)(dong)器(qi)還可(ke)(ke)(ke)應用于(yu)機(ji)場(chang)安(an)檢(jian)機(ji)、快(kuai)遞分揀機(ji)等其他輸送(song)設備中。江西直流無刷(shua)電動(dong)(dong)輥(gun)筒(tong)用途在體(ti)育場(chang)館中,法思特(te)電動(dong)(dong)輥(gun)筒(tong)用于(yu)體(ti)育設備的(de)運輸和(he)布置(zhi),為賽事的(de)順(shun)利(li)進行提供了保(bao)障。
研發(fa)創(chuang)新:法思(si)特驅動(dong)科技(ji)(ji)(ji)不斷(duan)投(tou)入(ru)研發(fa),致力于提(ti)(ti)供更(geng)先(xian)進的(de)電動(dong)輥筒和(he)(he)驅動(dong)器技(ji)(ji)(ji)術,以滿足客(ke)(ke)(ke)(ke)戶(hu)(hu)的(de)需求(qiu)并應(ying)對市場(chang)的(de)變化(hua)。通過(guo)技(ji)(ji)(ji)術創(chuang)新,公(gong)(gong)司能(neng)夠提(ti)(ti)高產品(pin)(pin)的(de)性能(neng)、降(jiang)低成(cheng)(cheng)本并為(wei)客(ke)(ke)(ke)(ke)戶(hu)(hu)提(ti)(ti)供定制化(hua)的(de)解(jie)決方(fang)案(an)。服務:法思(si)特驅動(dong)科技(ji)(ji)(ji)注(zhu)重(zhong)為(wei)客(ke)(ke)(ke)(ke)戶(hu)(hu)提(ti)(ti)供服務,包括(kuo)售(shou)前咨詢、售(shou)中支持和(he)(he)售(shou)后服務。通過(guo)與(yu)客(ke)(ke)(ke)(ke)戶(hu)(hu)的(de)緊密(mi)合作(zuo),公(gong)(gong)司能(neng)夠了解(jie)客(ke)(ke)(ke)(ke)戶(hu)(hu)的(de)需求(qiu)并提(ti)(ti)供針對性的(de)解(jie)決方(fang)案(an),從而提(ti)(ti)高客(ke)(ke)(ke)(ke)戶(hu)(hu)滿意度和(he)(he)忠誠度。拓(tuo)展(zhan)(zhan)市場(chang):法思(si)特驅動(dong)科技(ji)(ji)(ji)積(ji)極拓(tuo)展(zhan)(zhan)國(guo)內外市場(chang),擴(kuo)大產品(pin)(pin)的(de)應(ying)用領(ling)域和(he)(he)市場(chang)份額(e)。通過(guo)參加行業(ye)展(zhan)(zhan)會、開展(zhan)(zhan)市場(chang)調(diao)研和(he)(he)加強與(yu)合作(zuo)伙伴的(de)合作(zuo),公(gong)(gong)司能(neng)夠獲(huo)取更(geng)多(duo)的(de)市場(chang)信(xin)息和(he)(he)商(shang)機,從而應(ying)對市場(chang)競爭的(de)壓力。降(jiang)低成(cheng)(cheng)本:法思(si)特驅動(dong)科技(ji)(ji)(ji)通過(guo)優化(hua)生產流(liu)程、降(jiang)低原材(cai)料成(cheng)(cheng)本和(he)(he)實(shi)施精益化(hua)管(guan)理(li)等措施來降(jiang)低成(cheng)(cheng)本。這有助于提(ti)(ti)高公(gong)(gong)司的(de)競爭力,同時保持產品(pin)(pin)的(de)質量和(he)(he)性能(neng)優勢。
按傳(chuan)動(dong)(dong)(dong)結(jie)構分類①定軸(zhou)(zhou)(zhou)(zhou)齒(chi)(chi)輪傳(chuan)動(dong)(dong)(dong)目(mu)前(qian)世(shi)界上電動(dong)(dong)(dong)滾筒常用(yong)的(de)減速(su)裝置就(jiu)是定軸(zhou)(zhou)(zhou)(zhou)定軸(zhou)(zhou)(zhou)(zhou)齒(chi)(chi)輪傳(chuan)動(dong)(dong)(dong),而齒(chi)(chi)輪傳(chuan)動(dong)(dong)(dong)中95%以上是定軸(zhou)(zhou)(zhou)(zhou)漸(jian)開線(xian)圓柱(zhu)齒(chi)(chi)輪傳(chuan)動(dong)(dong)(dong)結(jie)構。一(yi)(yi)(yi)般(ban)適(shi)用(yong)功(gong)(gong)率(lv)在(zai)18.5KW以下(xia)。②行(xing)(xing)星齒(chi)(chi)輪傳(chuan)動(dong)(dong)(dong)這種(zhong)(zhong)傳(chuan)動(dong)(dong)(dong)形式與定軸(zhou)(zhou)(zhou)(zhou)齒(chi)(chi)輪傳(chuan)動(dong)(dong)(dong)比(bi)較(jiao),具(ju)有(you)承(cheng)(cheng)載(zai)(zai)能(neng)力大(da)、工作(zuo)平(ping)(ping)穩(wen)等(deng)優點(dian)。一(yi)(yi)(yi)般(ban)適(shi)用(yong)功(gong)(gong)率(lv)18.5-132KW,基至更大(da)。③行(xing)(xing)星擺線(xian)針輪傳(chuan)動(dong)(dong)(dong)這種(zhong)(zhong)傳(chuan)動(dong)(dong)(dong)結(jie)構在(zai)國外比(bi)較(jiao)少,在(zai)國內比(bi)較(jiao)多,具(ju)有(you)承(cheng)(cheng)載(zai)(zai)能(neng)力大(da),工作(zuo)平(ping)(ping)穩(wen)等(deng)優點(dian)。能(neng)夠滿足較(jiao)低線(xian)速(su)度的(de)要(yao)求。一(yi)(yi)(yi)般(ban)適(shi)用(yong)功(gong)(gong)率(lv)在(zai)90KW以下(xia)。電動(dong)(dong)(dong)輥(gun)筒的(de)維護保養包(bao)括定期檢查軸(zhou)(zhou)(zhou)(zhou)承(cheng)(cheng)、潤滑、密封等(deng)部件,確保其正常運行(xing)(xing)和使用(yong)壽命。
電(dian)動(dong)(dong)輥(gun)筒(tong)是(shi)一種重要的傳動(dong)(dong)設(she)備,廣泛應(ying)用(yong)(yong)于各(ge)種工(gong)業領域(yu)。它(ta)(ta)結(jie)合了(le)電(dian)動(dong)(dong)驅動(dong)(dong)和機(ji)(ji)械傳動(dong)(dong)兩種方式,具有高效(xiao)、穩定(ding)、靈活的特點。本文將詳細(xi)介紹電(dian)動(dong)(dong)輥(gun)筒(tong)的定(ding)義、構造、工(gong)作原理、優(you)點、應(ying)用(yong)(yong)領域(yu)、維護保養以及常(chang)見問題(ti)及解決方案。電(dian)動(dong)(dong)輥(gun)筒(tong)是(shi)一種由電(dian)機(ji)(ji)驅動(dong)(dong)的輥(gun)筒(tong),它(ta)(ta)通過(guo)電(dian)機(ji)(ji)、減速機(ji)(ji)、齒(chi)輪(lun)等部件(jian)將電(dian)能(neng)轉(zhuan)(zhuan)化為機(ji)(ji)械能(neng),從而帶動(dong)(dong)輥(gun)筒(tong)的旋轉(zhuan)(zhuan)運(yun)動(dong)(dong)。它(ta)(ta)廣泛應(ying)用(yong)(yong)于各(ge)種輸送、搬運(yun)、分揀等作業中。電(dian)動(dong)(dong)輥(gun)筒(tong)主要由電(dian)機(ji)(ji)、減速機(ji)(ji)、齒(chi)輪(lun)、輥(gun)筒(tong)等部分組成。其中,電(dian)機(ji)(ji)是(shi)驅動(dong)(dong)部分,減速機(ji)(ji)和齒(chi)輪(lun)是(shi)傳動(dong)(dong)部分,輥(gun)筒(tong)是(shi)執行部分。在金(jin)屬加工(gong)行業中,法思特電(dian)動(dong)(dong)輥(gun)筒(tong)協(xie)助實現了(le)金(jin)屬材料的精(jing)確傳輸和定(ding)位。臺(tai)州新能(neng)源電(dian)動(dong)(dong)輥(gun)筒(tong)用(yong)(yong)途
電(dian)動(dong)輥筒的輥筒表面采用(yong)高(gao)質量(liang)材料制造,可承(cheng)受高(gao)負載和高(gao)溫條件。福(fu)建(jian)多(duo)功能電(dian)動(dong)輥筒廠家哪個好
法(fa)思(si)(si)特(te)驅(qu)(qu)動(dong)(dong)(dong)科(ke)(ke)技(ji)獲(huo)得(de)IOS質量(liang)體系認證表(biao)明該公(gong)司(si)(si)(si)的(de)(de)(de)(de)管理符合國(guo)(guo)際(ji)標準,能(neng)(neng)夠(gou)(gou)保證產(chan)品(pin)(pin)的(de)(de)(de)(de)質量(liang)、性能(neng)(neng)和安(an)全性。這(zhe)意味著客戶可(ke)(ke)以放(fang)心購(gou)買(mai)法(fa)思(si)(si)特(te)驅(qu)(qu)動(dong)(dong)(dong)科(ke)(ke)技(ji)的(de)(de)(de)(de)產(chan)品(pin)(pin),因(yin)為該公(gong)司(si)(si)(si)的(de)(de)(de)(de)產(chan)品(pin)(pin)符合高質量(liang)的(de)(de)(de)(de)標準。電動(dong)(dong)(dong)滾(gun)筒(tong)和無動(dong)(dong)(dong)力(li)滾(gun)筒(tong)是法(fa)思(si)(si)特(te)驅(qu)(qu)動(dong)(dong)(dong)科(ke)(ke)技(ji)生產(chan)的(de)(de)(de)(de)兩(liang)種重(zhong)要(yao)(yao)產(chan)品(pin)(pin),廣泛應用于物流、倉儲、生產(chan)線等領(ling)域。這(zhe)些產(chan)品(pin)(pin)具(ju)有高效(xiao)、穩定、耐用的(de)(de)(de)(de)特(te)點,能(neng)(neng)夠(gou)(gou)滿足(zu)不(bu)同客戶的(de)(de)(de)(de)需求。獲(huo)得(de)IOS質量(liang)體系認證對于法(fa)思(si)(si)特(te)驅(qu)(qu)動(dong)(dong)(dong)科(ke)(ke)技(ji)來(lai)說(shuo)是非常重(zhong)要(yao)(yao)的(de)(de)(de)(de),這(zhe)標志著該公(gong)司(si)(si)(si)的(de)(de)(de)(de)產(chan)品(pin)(pin)質量(liang)得(de)到(dao)了國(guo)(guo)際(ji)認可(ke)(ke)。這(zhe)將有助于提高公(gong)司(si)(si)(si)的(de)(de)(de)(de)聲譽(yu)和信(xin)譽(yu),進一步拓展國(guo)(guo)際(ji)市場,提高公(gong)司(si)(si)(si)的(de)(de)(de)(de)競爭力(li)。福建多(duo)功(gong)能(neng)(neng)電動(dong)(dong)(dong)輥(gun)筒(tong)廠家哪個好
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深圳國(guo)慶(qing)中國(guo)澳門旅游6天5晚多少錢(qian)
中國(guo)澳門是(shi)一個四季(ji)宜人的(de)旅游勝地(di),但是(shi)更佳旅游季(ji)節是(shi)秋季(ji)和冬季(ji)。這個時候氣溫適宜,不會像(xiang)夏季(ji)那(nei)(nei)樣(yang)炎熱(re),也(ye)不會像(xiang)春季(ji)那(nei)(nei)樣(yang)潮濕(shi)。此(ci)外,秋季(ji)和冬季(ji)也(ye)是(shi)中國(guo)澳門旅游的(de)淡(dan)季(ji),游客相(xiang)對較少,景點也(ye)不會像(xiang)旺季(ji)那(nei)(nei)樣(yang)擁 。
網絡(luo)推(tui)廣(guang)的(de)發(fa)展隨著互聯網技術的(de)不(bu)斷進步(bu)和應用(yong)的(de)不(bu)斷深化(hua)(hua),也在不(bu)斷發(fa)展和變化(hua)(hua)。以下(xia)是一些發(fa)展趨勢(shi):1、多(duo)元化(hua)(hua)渠道:隨著社交媒(mei)體的(de)興起,網絡(luo)推(tui)廣(guang)已經不(bu)再局限于傳統的(de)搜索(suo)引擎和廣(guang)告平(ping)臺,更(geng)多(duo)的(de)推(tui)廣(guang)渠道正在涌(yong) 。
盤式(shi)干(gan)(gan)燥機是(shi)一種(zhong)常用(yong)的(de)(de)固(gu)體顆(ke)粒干(gan)(gan)燥設備,主要(yao)用(yong)于(yu)化工(gong)、制藥、食品加工(gong)等行(xing)(xing)業中對(dui)顆(ke)粒狀(zhuang)物(wu)料進(jin)行(xing)(xing)干(gan)(gan)燥處理(li)。其工(gong)作(zuo)原理(li)如(ru)下:物(wu)料進(jin)料:待處理(li)的(de)(de)濕(shi)物(wu)料被送(song)入(ru)盤式(shi)干(gan)(gan)燥機的(de)(de)進(jin)料口,通(tong)常通(tong)過(guo)給料器均勻地分布在旋轉的(de)(de) 。
傳(chuan)(chuan)遞(di)(di)窗(chuang)(機(ji)械、 電子互鎖傳(chuan)(chuan)遞(di)(di)窗(chuang),潔(jie)凈傳(chuan)(chuan)遞(di)(di)窗(chuang))和(he)普通(tong)裝(zhuang)置傳(chuan)(chuan)遞(di)(di)窗(chuang)是一種潔(jie)凈廠(chang)房配套使用(yong)的(de)(de)空氣凈化輔助設(she)備(bei),是潔(jie)凈室(shi)與非潔(jie)凈區(qu)之間小(xiao)件物品的(de)(de)傳(chuan)(chuan)遞(di)(di),以減(jian)少(shao)潔(jie)凈室(shi)的(de)(de)開(kai)門(men)次數,把對潔(jie)凈室(shi)或潔(jie)凈區(qu)的(de)(de)污染程度降低。傳(chuan)(chuan) 。
風冷(leng)電(dian)(dian)(dian)機的(de)市場需求(qiu)持續增長,為(wei)電(dian)(dian)(dian)機產業的(de)發展(zhan)提供(gong)了良好的(de)機遇。隨著(zhu)工業化進程的(de)加快(kuai),風冷(leng)電(dian)(dian)(dian)機在(zai)各個領域的(de)應(ying)用不斷(duan)擴大(da),為(wei)電(dian)(dian)(dian)機產業的(de)發展(zhan)提供(gong)了巨大(da)的(de)市場空間。風冷(leng)電(dian)(dian)(dian)機的(de)綠色(se)環保(bao)特點得(de)到了普遍認可。電(dian)(dian)(dian)機采(cai) 。
手腳(jiao)冰涼的(de)原因(yin)(yin)可(ke)能有以下幾(ji)種:1.生理(li)性因(yin)(yin)素(su):穿(chuan)衣太(tai)少、環境(jing)太(tai)冷等生理(li)性的(de)因(yin)(yin)素(su),會導(dao)致手腳(jiao)冰涼。2.低血糖(tang):饑(ji)餓、過量使(shi)用降糖(tang)藥等會導(dao)致血漿中葡(pu)萄糖(tang)水平低,出現低血糖(tang),會導(dao)致患者手腳(jiao)冰涼、大汗、饑(ji)餓、 。
輪船碼頭(tou)耐磨防滑(hua)(hua)墊(dian)的(de)(de)以(yi)下優勢:首先,它具有(you)良好的(de)(de)防滑(hua)(hua)性(xing)能。耐磨材(cai)料可(ke)(ke)以(yi)提供(gong)穩定的(de)(de)摩(mo)擦力,防止(zhi)人員或物品(pin)在碼頭(tou)上滑(hua)(hua)倒或滑(hua)(hua)動,從(cong)而提高(gao)安全性(xing)。其次,耐磨防滑(hua)(hua)墊(dian)能夠有(you)效地保護碼頭(tou)表(biao)面。它們可(ke)(ke)以(yi)減(jian)少碼頭(tou)表(biao)面的(de)(de) 。
水(shui)泥(ni)防水(shui)砂漿(jiang)是建(jian)(jian)筑(zhu)(zhu)施工中(zhong)常(chang)用的(de)材料,隨著時(shi)間(jian)的(de)推移,水(shui)泥(ni)砂漿(jiang)會(hui)(hui)因為水(shui)分(fen)的(de)蒸發和(he)水(shui)泥(ni)水(shui)化(hua)引起收(shou)縮(suo)。水(shui)泥(ni)砂漿(jiang)的(de)收(shou)縮(suo)會(hui)(hui)對(dui)建(jian)(jian)筑(zhu)(zhu)結構(gou)的(de)安全性產(chan)生一定的(de)影響,當(dang)水(shui)泥(ni)砂漿(jiang)受到收(shou)縮(suo)作用時(shi),會(hui)(hui)對(dui)構(gou)件產(chan)生一定的(de)拉力和(he)應力 。
數(shu)控加(jia)工(gong)(gong)銷(xiao)(xiao)(xiao)(xiao)售(shou)的銷(xiao)(xiao)(xiao)(xiao)售(shou)模(mo)(mo)式(shi)有以(yi)下幾種(zhong):1. 直銷(xiao)(xiao)(xiao)(xiao)模(mo)(mo)式(shi):直銷(xiao)(xiao)(xiao)(xiao)模(mo)(mo)式(shi)是指制(zhi)造商(shang)直接將(jiang)產品銷(xiao)(xiao)(xiao)(xiao)售(shou)給用(yong)戶(hu)(hu),省去了中間(jian)環節的經(jing)銷(xiao)(xiao)(xiao)(xiao)商(shang)。在數(shu)控加(jia)工(gong)(gong)銷(xiao)(xiao)(xiao)(xiao)售(shou)中,制(zhi)造商(shang)可(ke)以(yi)通(tong)過建立自己(ji)的銷(xiao)(xiao)(xiao)(xiao)售(shou)團隊或(huo)與用(yong)戶(hu)(hu)建立直接聯系(xi)的方式(shi),直接向用(yong) 。
上(shang)海(hai)宇志通信(xin)技術有限公司(si)設計團隊十(shi)幾年來一(yi)直(zhi)圍繞著衛星導(dao)(dao)航(hang)領域研發(fa),積(ji)類(lei)了豐富的衛星導(dao)(dao)航(hang)基礎和底層應用(yong)開(kai)發(fa),產品涵(han)蓋(gai)導(dao)(dao)航(hang)信(xin)號模擬器、導(dao)(dao)航(hang)中頻數據采集回放(fang)、導(dao)(dao)航(hang)陣列(lie)信(xin)號采集和處(chu)(chu)理(li)、DDMR反射信(xin)號處(chu)(chu)理(li)機 。
水(shui)(shui)(shui)泥(ni)(ni)防水(shui)(shui)(shui)砂漿(jiang)是建筑施工中常(chang)用的(de)材料,隨著時間(jian)的(de)推移(yi),水(shui)(shui)(shui)泥(ni)(ni)砂漿(jiang)會因(yin)為水(shui)(shui)(shui)分(fen)的(de)蒸發和水(shui)(shui)(shui)泥(ni)(ni)水(shui)(shui)(shui)化(hua)引起(qi)收縮(suo)。水(shui)(shui)(shui)泥(ni)(ni)砂漿(jiang)的(de)收縮(suo)會對(dui)(dui)建筑結構(gou)(gou)的(de)安全性產(chan)生一(yi)定的(de)影響,當水(shui)(shui)(shui)泥(ni)(ni)砂漿(jiang)受到收縮(suo)作用時,會對(dui)(dui)構(gou)(gou)件產(chan)生一(yi)定的(de)拉力(li)和應力(li) 。