蜗杆减速机特点:
1.齿轮采用高强度低碳合金钢经渗碳淬火而成,齿面硬度达HRC58-62,齿轮均采用磨齿工艺,精度高,接触性好。
2.传动效率高:三级大于90%。
3.运转平稳,噪音低。
4.体积小,重量轻,使用寿命长,承载能力高。
5.易于拆检,易于安装。
新闻:凤城市往复机专用步进电机HSTM86-1.8-S-78-8-4.2新闻
直流发电机的工作原理就是把电枢线圈中感应的交变电动势,靠换向器配合电刷的换向作用,使之从电刷端引出时变为直流电动势的原理。
感应电动势的方向按右手定则确定(磁感线指向手心,大拇指指向导体运动方向,其他四指的指向就是导体中感应电动势的方向)。
导体受力的方向用左手定则确定。这一对电磁力形成了作用于电枢一个力矩,这个力矩在旋转电机里称为电磁转矩,转矩的方向是逆时针方向,企图使电枢逆时针方向转动。如果此电磁转矩能够克服电枢上的阻转矩(例如由摩擦引起的阻转矩以及其它负载转矩),电枢就能按逆时针方向旋转起来。
由直流电动机和发电机工作原理示意图可以看到,直流电机的结构应由定子和转子两大部分组成。直流电机运行时静止不动的部分称为定子,定子的主要作用是产生磁场,由机座、主磁极、换向极、端盖、轴承和电刷装置等组成。运行时转动的部分称为转子,其主要作用是产生电磁转矩和感应电动势,是直流电机进行能量转换的枢纽,所以通常又称为电枢,由转轴、电枢铁心、电枢绕组、换向器和风扇等组成。
新闻:凤城市往复机专用步进电机HSTM86-1.8-S-78-8-4.2新闻
也就是卡片的容量问题选择产品类型问:是购买独立型门禁机还是购买联网型门禁机?答:所谓独立型门禁机,就是不用和计算机联网和设置权限,通过主卡副卡,或者红外遥控器或者密码键盘设计注册卡的进出权限。优点是:布线施工方便,价格便宜。缺点是没有个性化的出入权限管理,没有进出记录的查询,只具备门禁的基本功能。门多时,设置复杂,累。安全性较弱。联网型门禁系统是通过电脑对所有门进行权限管理,设置强大的门禁管理功能和权限,可以实时监控门的进出情况,查询所有门的进出记录,门越多,设置越轻松,管理越方便。
新闻:凤城市往复机专用步进电机HSTM86-1.8-S-78-8-4.2新闻
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的可塑性强,应用广泛,大家穿的衣服,家里微波炉的专用碗筷等都是或者至少含有PVC材料。这种材料很难在自然界中解降,甚至要用几百上千年才能够使高分子链断裂,完成解降过程。所以不是环保材料。无纺纸(俗称:无纺布),是没有方向性的一种织造,也就是非经纬织造,结构相对松散,能够比较容易地在自然界中解降,所以相对于PVC而言,是比较环保的材料。这两种材料环保性的比较依据是它们被废弃之后对环境的污染程度或者解降这些材料所使用的能源(或者叫自然资源)的多少。
新闻:凤城市往复机专用步进电机HSTM86-1.8-S-78-8-4.2新闻
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