蝸桿減速機(jī)特點(diǎn):
1.齒輪采用高強(qiáng)度低碳合金鋼經(jīng)滲碳淬火而成，齒面硬度達(dá)HRC58-62，齒輪均采用磨齒工藝，精度高，接觸性好。
2.傳動效率高：三級大于90%。
3.運(yùn)轉(zhuǎn)平穩(wěn)，噪音低。
4.體積小，重量輕，使用壽命長，承載能力高。
5.易于拆檢，易于安裝。
新聞:鳳城市往復(fù)機(jī)專用步進(jìn)電機(jī)HSTM86-1.8-S-78-8-4.2新聞
直流發(fā)電機(jī)的工作原理就是把電樞線圈中感應(yīng)的交變電動勢，靠換向器配合電刷的換向作用，使之從電刷端引出時變?yōu)橹绷麟妱觿莸脑怼?br>
感應(yīng)電動勢的方向按右手定則確定（磁感線指向手心，大拇指指向?qū)w運(yùn)動方向，其他四指的指向就是導(dǎo)體中感應(yīng)電動勢的方向）。
導(dǎo)體受力的方向用左手定則確定。這一對電磁力形成了作用于電樞一個力矩，這個力矩在旋轉(zhuǎn)電機(jī)里稱為電磁轉(zhuǎn)矩，轉(zhuǎn)矩的方向是逆時針方向，企圖使電樞逆時針方向轉(zhuǎn)動。如果此電磁轉(zhuǎn)矩能夠克服電樞上的阻轉(zhuǎn)矩（例如由摩擦引起的阻轉(zhuǎn)矩以及其它負(fù)載轉(zhuǎn)矩），電樞就能按逆時針方向旋轉(zhuǎn)起來。
由直流電動機(jī)和發(fā)電機(jī)工作原理示意圖可以看到，直流電機(jī)的結(jié)構(gòu)應(yīng)由定子和轉(zhuǎn)子兩大部分組成。直流電機(jī)運(yùn)行時靜止不動的部分稱為定子，定子的主要作用是產(chǎn)生磁場，由機(jī)座、主磁極、換向極、端蓋、軸承和電刷裝置等組成。運(yùn)行時轉(zhuǎn)動的部分稱為轉(zhuǎn)子，其主要作用是產(chǎn)生電磁轉(zhuǎn)矩和感應(yīng)電動勢，是直流電機(jī)進(jìn)行能量轉(zhuǎn)換的樞紐，所以通常又稱為電樞，由轉(zhuǎn)軸、電樞鐵心、電樞繞組、換向器和風(fēng)扇等組成。
新聞:鳳城市往復(fù)機(jī)專用步進(jìn)電機(jī)HSTM86-1.8-S-78-8-4.2新聞
也就是卡片的容量問題選擇產(chǎn)品類型問：是購買獨(dú)立型門禁機(jī)還是購買聯(lián)網(wǎng)型門禁機(jī)?答：所謂獨(dú)立型門禁機(jī)，就是不用和計(jì)算機(jī)聯(lián)網(wǎng)和設(shè)置權(quán)限，通過主卡副卡，或者紅外遙控器或者密碼鍵盤設(shè)計(jì)注冊卡的進(jìn)出權(quán)限。優(yōu)點(diǎn)是：布線施工方便，價格便宜。缺點(diǎn)是沒有個性化的出入權(quán)限管理，沒有進(jìn)出記錄的查詢，只具備門禁的基本功能。門多時，設(shè)置復(fù)雜，累。安全性較弱。聯(lián)網(wǎng)型門禁系統(tǒng)是通過電腦對所有門進(jìn)行權(quán)限管理，設(shè)置強(qiáng)大的門禁管理功能和權(quán)限，可以實(shí)時監(jiān)控門的進(jìn)出情況，查詢所有門的進(jìn)出記錄，門越多，設(shè)置越輕松，管理越方便。
新聞:鳳城市往復(fù)機(jī)專用步進(jìn)電機(jī)HSTM86-1.8-S-78-8-4.2新聞
CV200-3-S-G4-DL-V9
CV200-5-S-G4-DL-V9
CV200-10-S-G4-DL-V9
CV200-15-S-G4-DL-V9
CV200-20-S-G4-DL-V9
CV200-25-S-G4-DL-V9
CV200-30-S-G4-DL-V9
CV200-40-S-G4-DL-V9
CV200-45-S-G4-DL-V9
CV200-50-S-G4-DL-V9
CV200-60-S-G4-DL-V9
CV200-70-S-G4-DL-V9
CV200-80-S-G4-DL-V9
CV200-90-S-G4-DL-V9
CV200-100-S-G4-DL-V9
CV200-120-S-G4-DL-V9
CV200-140-S-G4-DL-V9
CV200-160-S-G4-DL-V9
CV200-180-S-G4-DL-V9
CV200-200-S-G4-DL-V9
CV400-3-S-G4-DL-V9
CV400-5-S-G4-DL-V9
CV400-10-S-G4-DL-V9
CV400-15-S-G4-DL-V9
CV400-20-S-G4-DL-V9
CV400-25-S-G4-DL-V9
CV400-30-S-G4-DL-V9
CV400-40-S-G4-DL-V9
CV400-45-S-G4-DL-V9
CV400-50-S-G4-DL-V9
CV400-60-S-G4-DL-V9
CV400-70-S-G4-DL-V9
CV400-80-S-G4-DL-V9
CV400-90-S-G4-DL-V9
CV400-100-S-G4-DL-V9
CV400-120-S-G4-DL-V9
CV400-140-S-G4-DL-V9
CV400-160-S-G4-DL-V9
CV400-180-S-G4-DL-V9
CV400-200-S-G4-DL-V9
CV750-3-S-G4-DL-V9
CV750-5-S-G4-DL-V9
CV750-10-S-G4-DL-V9
CV750-15-S-G4-DL-V9
CV750-20-S-G4-DL-V9
CV750-25-S-G4-DL-V9
CV750-30-S-G4-DL-V9
CV750-40-S-G4-DL-V9
CV750-45-S-G4-DL-V9
CV750-50-S-G4-DL-V9
CV750-60-S-G4-DL-V9
CV750-70-S-G4-DL-V9
CV750-80-S-G4-DL-V9
CV750-90-S-G4-DL-V9
CV750-100-S-G4-DL-V9
CV750-120-S-G4-DL-V9
CV750-140-S-G4-DL-V9
CV750-160-S-G4-DL-V9
CV750-180-S-G4-DL-V9
CV750-200-S-G4-DL-V9
CV1500-3-S-G4-DL-V9
CV1500-5-S-G4-DL-V9
CV1500-10-S-G4-DL-V9
CV1500-15-S-G4-DL-V9
CV1500-20-S-G4-DL-V9
CV1500-25-S-G4-DL-V9
CV1500-30-S-G4-DL-V9
CV1500-40-S-G4-DL-V9
CV1500-45-S-G4-DL-V9
CV1500-50-S-G4-DL-V9
CV1500-60-S-G4-DL-V9
CV1500-70-S-G4-DL-V9
CV1500-80-S-G4-DL-V9
CV1500-90-S-G4-DL-V9
CV1500-100-S-G4-DL-V9
CV1500-120-S-G4-DL-V9
CV1500-140-S-G4-DL-V9
CV1500-160-S-G4-DL-V9
CV1500-180-S-G4-DL-V9
CV1500-200-S-G4-DL-V9
PVC的可塑性強(qiáng)，應(yīng)用廣泛，大家穿的衣服，家里微波爐的專用碗筷等都是或者至少含有PVC材料。這種材料很難在自然界中解降，甚至要用幾百上千年才能夠使高分子鏈斷裂，完成解降過程。所以不是環(huán)保材料。無紡紙(俗稱：無紡布)，是沒有方向性的一種織造，也就是非經(jīng)緯織造，結(jié)構(gòu)相對松散，能夠比較容易地在自然界中解降，所以相對于PVC而言，是比較環(huán)保的材料。這兩種材料環(huán)保性的比較依據(jù)是它們被廢棄之后對環(huán)境的污染程度或者解降這些材料所使用的能源(或者叫自然資源)的多少。
新聞:鳳城市往復(fù)機(jī)專用步進(jìn)電機(jī)HSTM86-1.8-S-78-8-4.2新聞
CH100-3-S-B-G1-LD-H6
CH100-5-S-B-G1-LD-H6
CH100-10-S-B-G1-LD-H6
CH100-15-S-B-G1-LD-H6
CH100-20-S-B-G1-LD-H6
CH100-25-S-B-G1-LD-H6
CH100-30-S-B-G1-LD-H6
CH100-40-S-B-G1-LD-H6
CH100-45-S-B-G1-LD-H6
CH100-50-S-B-G1-LD-H6
CH100-60-S-B-G1-LD-H6
CH100-70-S-B-G1-LD-H6
CH100-80-S-B-G1-LD-H6
CH100-90-S-B-G1-LD-H6
CH100-100-S-B-G1-LD-H6
CH100-120-S-B-G1-LD-H6
CH100-140-S-B-G1-LD-H6
CH100-160-S-B-G1-LD-H6
CH100-180-S-B-G1-LD-H6
CH100-200-S-B-G1-LD-H6
CH200-3-S-B-G1-LD-H6
CH200-5-S-B-G1-LD-H6
CH200-10-S-B-G1-LD-H6
CH200-15-S-B-G1-LD-H6
CH200-20-S-B-G1-LD-H6
CH200-25-S-B-G1-LD-H6
CH200-30-S-B-G1-LD-H6
CH200-40-S-B-G1-LD-H6
CH200-45-S-B-G1-LD-H6
CH200-50-S-B-G1-LD-H6
CH200-60-S-B-G1-LD-H6
CH200-70-S-B-G1-LD-H6
CH200-80-S-B-G1-LD-H6
CH200-90-S-B-G1-LD-H6
CH200-100-S-B-G1-LD-H6
CH200-120-S-B-G1-LD-H6
CH200-140-S-B-G1-LD-H6
CH200-160-S-B-G1-LD-H6
CH200-180-S-B-G1-LD-H6
CH200-200-S-B-G1-LD-H6
CH400-3-S-B-G1-LD-H6
CH400-5-S-B-G1-LD-H6
CH400-10-S-B-G1-LD-H6
CH400-15-S-B-G1-LD-H6
CH400-20-S-B-G1-LD-H6
CH400-25-S-B-G1-LD-H6
CH400-30-S-B-G1-LD-H6
CH400-40-S-B-G1-LD-H6
CH400-45-S-B-G1-LD-H6
CH400-50-S-B-G1-LD-H6
CH400-60-S-B-G1-LD-H6
CH400-70-S-B-G1-LD-H6
CH400-80-S-B-G1-LD-H6
CH400-90-S-B-G1-LD-H6
CH400-100-S-B-G1-LD-H6
CH400-120-S-B-G1-LD-H6
CH400-140-S-B-G1-LD-H6
CH400-160-S-B-G1-LD-H6
CH400-180-S-B-G1-LD-H6
CH400-200-S-B-G1-LD-H6
CH750-3-S-B-G1-LD-H6
CH750-5-S-B-G1-LD-H6
CH750-10-S-B-G1-LD-H6
CH750-15-S-B-G1-LD-H6
CH750-20-S-B-G1-LD-H6
CH750-25-S-B-G1-LD-H6
CH750-30-S-B-G1-LD-H6
CH750-40-S-B-G1-LD-H6
CH750-45-S-B-G1-LD-H6
CH750-50-S-B-G1-LD-H6
CH750-60-S-B-G1-LD-H6
CH750-70-S-B-G1-LD-H6
CH750-80-S-B-G1-LD-H6
CH750-90-S-B-G1-LD-H6
CH750-100-S-B-G1-LD-H6
CH750-120-S-B-G1-LD-H6
CH750-140-S-B-G1-LD-H6
CH750-160-S-B-G1-LD-H6
CH750-180-S-B-G1-LD-H6
CH750-200-S-B-G1-LD-H6
