我們專(zhuan)注于鋼(gang)筋網(wang)片、絲桿、止水鋼(gang)板(ban)銷售(shou)批發
我們專(zhuan)注于鋼(gang)筋網(wang)片、絲桿、止水鋼(gang)板(ban)銷售(shou)批發
止水(shui)(shui)鋼板(ban)在航空地(di)下室(shi)多項防水(shui)(shui)措施(shi)(shi)：根據本工(gong)程的(de)(de)工(gong)程地(di)質特點，地(di)下室(shi)結構防水(shui)(shui)施(shi)(shi)工(gong)遵循“以防為(wei)主、剛柔結合、多道防線(xian)、因地(di)制宜、綜(zong)合治理(li)”的(de)(de)原(yuan)則y，從基坑圍護階段(duan)開始一直到(dao)地(di)下結構出地(di)面，始終把防水(shui)(shui)措施(shi)(shi)作為(wei)質量控制的(de)(de)重點。
鋼板(ban)(ban)止(zhi)水(shui)帶(dai)(dai)一般是(shi)規(gui)定其(qi)中心的(de)高(gao)度到底板(ban)(ban)面(mian)的(de)距離應該最少是(shi)250mm,但是(shi)一般為了(le)比較方便的(de)施工,取得高(gao)度是(shi)300mm的(de)寬吊(diao)高(gao)度.，在我(wo)們(men)確定鋼板(ban)(ban)止(zhi)水(shui)帶(dai)(dai)的(de)水(shui)平高(gao)度之后(hou),一般會根據建(jian)筑物的(de)標高(gao)控(kong)制點,從(cong)而在鋼板(ban)(ban)止(zhi)水(shui)帶(dai)(dai)上(shang)口(kou)(kou)拉線,這樣用(yong)來保持上(shang)口(kou)(kou)平直.
SMW工(gong)(gong)(gong)法樁施(shi)工(gong)(gong)(gong)、開挖(wa)(wa)至標(biao)高一(yi)(yi)3. lOm、放(fang)坡(po)段噴硅施(shi)工(gong)(gong)(gong)及第一(yi)(yi)道混凝上(shang)水平支(zhi)撐(cheng)施(shi)工(gong)(gong)(gong)、開挖(wa)(wa)至一(yi)(yi)5. 30m，按設計要求(qiu)預留(liu)被(bei)動(dong)區反壓上(shang)、底板(ban)鋼斜(xie)支(zhi)撐(cheng)牛腿施(shi)工(gong)(gong)(gong)、反壓上(shang)面鋼斜(xie)支(zhi)撐(cheng)腰梁施(shi)工(gong)(gong)(gong)、鋼斜(xie)支(zhi)撐(cheng)安裝(zhuang)、反壓上(shang)挖(wa)(wa)除(chu)、反壓上(shang)下(xia)結構底板(ban)施(shi)工(gong)(gong)(gong)及地下(xia)室結構施(shi)工(gong)(gong)(gong)、回填至反壓上(shang)標(biao)高、拆除(chu)鋼斜(xie)支(zhi)撐(cheng)。
絲桿的(de)(de)特(te)點(dian)是加工(gong)(gong)精度(du)高(gao)，變(bian)形(xing)要求(qiu)嚴格，由于加工(gong)(gong)工(gong)(gong)序多(duo)，熱(re)處(chu)理(li)(li)質量和變(bian)形(xing)很重要。生產中(zhong)發(fa)現，工(gong)(gong)件滲碳淬(cui)火后彎曲變(bian)形(xing)嚴重，校(xiao)正困(kun)難，熱(re)處(chu)理(li)(li)后加工(gong)(gong)中(zhong)亦出現較大變(bian)形(xing)，造成大量產品返修和不少工(gong)(gong)件報廢。為了保障其(qi)機(ji)構(gou)的(de)(de)性能，又(you)方便用(yong)戶(hu)進(jin)行二次加工(gong)(gong)，一般只(zhi)對螺紋部分(fen)進(jin)行淬(cui)火熱(re)處(chu)理(li)(li)，其(qi)余部位仍(reng)可進(jin)行機(ji)械加工(gong)(gong)。
按照標準及應(ying)用(yong)實例，它是(shi)用(yong)來將(jiang)旋(xuan)轉運(yun)(yun)動(dong)轉化(hua)(hua)為(wei)(wei)直(zhi)線(xian)(xian)運(yun)(yun)動(dong)；或將(jiang)直(zhi)線(xian)(xian)運(yun)(yun)動(dong)轉化(hua)(hua)為(wei)(wei)旋(xuan)轉運(yun)(yun)動(dong)的(de)執行元(yuan)件，并具有傳動(dong)效率(lv)高，定位準確(que)等特點。當絲桿作(zuo)為(wei)(wei)主動(dong)體時，螺母(mu)就會隨其轉動(dong)角度按照對(dui)(dui)應(ying)規格的(de)導程轉化(hua)(hua)成直(zhi)線(xian)(xian)運(yun)(yun)動(dong)，被(bei)動(dong)工件可以通過螺母(mu)座和螺母(mu)連接(jie)，從而實現對(dui)(dui)應(ying)的(de)直(zhi)線(xian)(xian)運(yun)(yun)動(dong)。
主要視具體應用情況而定(ding)，簡單地(di)說要確定(ding)：負(fu)載(zai)的(de)性質(如水平(ping)還是(shi)(shi)垂直負(fu)載(zai)等(deng))，轉(zhuan)(zhuan)矩、慣量(liang)、轉(zhuan)(zhuan)速(su)、精度、加(jia)減速(su)等(deng)要求，已(yi)被(bei)快易(yi)優收(shou)錄(lu)，上(shang)位控制要求(如對(dui)端口界(jie)面和通訊方(fang)(fang)面的(de)要求)，主要控制方(fang)(fang)式(shi)是(shi)(shi)位置、轉(zhuan)(zhuan)矩還是(shi)(shi)速(su)度方(fang)(fang)式(shi)。供(gong)電(dian)電(dian)源是(shi)(shi)直流還是(shi)(shi)交流電(dian)源，或電(dian)池供(gong)電(dian)，電(dian)壓(ya)范圍(wei)。據此以(yi)確定(ding)電(dian)機和配用驅動器或控制器的(de)型號。
