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约找到 1352 条结果,耗时 0.279 秒
塑钢土根本不能做喷口
七公里垃圾站职业技术学院
10年0个月前
回复于
喷气推进
内容:引用 法式油炸薯条:这么跟你说吧,2cm粗,20cm长的
石墨
棒12块钱,够你锯下来做6个喷管了。,如果用热缩的话内压小于3mpa,且不能回收,不用热缩和插钉,以
石墨
的摩擦系数,内压要小于1.5mpa,小的可怜。
大神们看一下这个行吗
ApocalypseTANK
9年9个月前
回复于
电磁炮
内容:自制
石墨
触点开关?
准备开造液体火箭发动机,向大家打听一下
生命瞬间
9年8个月前
回复于
喷气推进
内容:打算用
石墨
做喷口,不知能否,请教大神们
关于DIY磁流体潜艇
闪电坚果墙
9年9个月前
回复于
极客DIY
内容:为何电压大了 用大电流吗 电极用
石墨
或度銀 硝酸银 嘿嘿
感应加热石墨怎么没有反应哦,感应线圈都烧红了?
power_rdx
10年0个月前
回复于
高电压技术
内容:
石墨
电阻太大了。
【提问】关于金属火箭加工。。。
法式油炸薯条
10年0个月前
回复于
喷气推进
内容:为啥不试试
石墨
喷口。
求助:600V 36000UF鋁電解電容器,作用于电磁枪是否合适?
NoxTyrannus
13年4个月前
回复于
电磁炮
内容:LZ太强了480元就买俩电容,LZ可以考虑用
石墨
棒作为导轨,线圈炮用那个电容根本受不了,而且输电线路需要非常强悍才可以如果可以弄到
石墨
烯叠层材料(嗯,就是只有实验室才能造出来)作为炮弹就无敌了,不说了,
GN-5031A-H固体火箭发动机设计试车
就是氧化铁喽
8个月27天前
发表于
喷气推进
动手实践: 实验报导
内容:金属壳体使用的是6061铝合金,壁厚2.5mm,设计室压5.5Mpa,安全系数4 ,发动机外径50mm,总长度310mm,燃料直径40mm,总长度220mm,燃料采用knsb推进剂,发动机采用酚醛衬层加
石墨
喷管,(热等静压
石墨
),堵头采用h13钢。,上一下计算数据出口气压设置在了110Kpa,略微欠膨胀容易上室压些以下是喷管设计图纸大家请忽略上面标的材质,
石墨
喷管和衬层中间要留0.1mm的公差,图纸里没标,回头大家改一下就行。,日补一个加点火药的试车视频-------分割线-------喷管的烧蚀情况和前后对比第一次试车隔热层有燃气泄漏,导致工作完温度在几百度以上,第二次试车加了密封圈,工作完之后,在30秒内飙升到了80多度😰积碳情况
石墨
喷嘴没有任何烧蚀
【廣局神作】RNX-75規格發動機試車
moxiao21
12年0个月前
回复于
喷气推进
内容:祝贺75RNX发动机试车成功,
石墨
喷管试验成功
一直觉得石墨是个做导轨的合适材料,但是实际操作中没有用到呢?有哪些不利的特性吗
猎鹰
6年2个月前
回复于
电磁炮
内容:模拟输出 关于不同材料电阻率 如果尺寸相同的轨道,换成
石墨
。,铜的电阻为0.336mΩ,
石墨
为160mΩ。
(定期更新)新发动机设计进展报告
Winter
5年9个月前
回复于
喷气推进
内容:@浪里黑条实测石膏固定
石墨
喷管非常有效
自己做的kn-pu-mg火箭
法式油炸薯条
10年0个月前
回复于
喷气推进
内容:引用 口贝:
石墨
很软?
高电压技术
1984bbs
14年1个月前
回复于
高电压技术
内容:里面没有电容放电电击
石墨
产生黄色结晶是什么的介绍
笔迹导电,大家看看这是什么原理
一天的蓝
13年0个月前
回复于
电子技术
内容:铅笔芯的主要成分是
石墨
和粘土,划在纸上相当于一个碳膜电阻 但阻值是不太稳定的
求教:关于切割方法((急急急)))
cysdky
9年6个月前
回复于
极客DIY
内容:引用 cysdky:沙窗丝(镍铬合金丝)5v直流 割塑料神器
石墨
试下线锯吧
木质喷口实验,顺便请教几个问题
lovehongkong
15年4个月前
回复于
喷气推进
内容:[s:94] 不知道用
石墨
蹭蹭可以不可以
上传一本好书,讲石墨烯的
MTL
9年9个月前
回复于
化学
内容:
石墨
烯的潜力远不止导电材料,光电器件,和微电子热沉都可以用到
自己做的kn-pu-mg火箭
法式油炸薯条
10年0个月前
发表于
喷气推进
内容:有视频,用的是PVC水管,
石墨
喷管,硝酸钾13g,镁粉2g,pu是聚醚三醇和甲苯二异氰酸酯,共3g。
尝试使用pcb参与制作电解池的构建
反氕
3个月2天前
发表于
极客DIY
动手实践: 实验报导
内容:电线家里比较多,随便拿了六根六平方的线分别做正极负极(据我家人说应该是六平方的 吧😅)满载电流的情况应该也还算够吧原本不打算做快接口的,每根线对一个接口然后发现塞不进😂,后来就改了快接电极:阳极:有
石墨
,阴极:钛,铁,不锈钢(钛据说也有一些腐蚀)我比较穷,就用不锈钢了和
石墨
了,以上都是搜集的一些资料的。,
石墨
这里先打个问号,作者看了别人前期的腐蚀速度还好,到后期就不行了,一会儿就没了。,希望视频能播放吧盐水不是特别浓,毕竟只是初步测试用的,阴极也比较少,导致
石墨
上生成的气体较少,电流应该也不高。,(硅胶由于操作不当,导致脱落造成一定的密封不足)电解池前面加的饱和盐水,后面加的清水,忘记会分层这事了,开机好一会才想起,这总共电解了10分钟,消耗如下
石墨
的消耗情况,看起来前期消耗真的挺少。
大神们看一下这个行吗
20!Dopaminor
9年9个月前
回复于
电磁炮
内容:比较怀疑放电速度,
石墨
也是会炸裂的,另外电压有点低
轨道炮子弹与轨道图纸
王小个
11年1个月前
回复于
电磁炮
内容:楼猪小心啊,敢不敢考虑下
石墨
弹头?
有一个石墨材料
Johnny-Wei
8年9个月前
回复于
喷气推进
内容:不会是核级
石墨
吧,这个很敏感的,不给乱买卖
星火计划-探空火箭----半年汇报(科创基金资助项目)
富二代创始人
9年1个月前
回复于
喷气推进
内容:是的,,, 改成
石墨
么?
电解氯化钠制备SP
浪里黑条
4年7个月前
回复于
化学
内容:
石墨
用作析氯电极相当不错,但是作为析氧电极就只有几十个小时的寿命了。。。
热解石墨磁悬浮
chenluois
10年8个月前
回复于
极客DIY
内容:梦梦梦半死 发表于 2014-5-6 12:10 赞一个,求理论利用热解
石墨
超强的抗磁性,施以适当磁场将其悬浮范围 "固定" 在底座中心位置。,热解
石墨
是常温下抗磁性最强的物质(超导需要超低温环境),抗磁性强度表:
热解石墨磁悬浮
metellan
10年8个月前
回复于
极客DIY
内容:本帖最后由 metellan 于 2014-5-6 13:55 编辑 据说普通
石墨
片或棒也可以。
石墨喷嘴
thesnake
16年3个月前
回复于
喷气推进
内容:用那种大型1.5V干电池的
石墨
棒,1.5mm以上的直径
金属发动机图纸
ksama
12年11个月前
回复于
喷气推进
内容:发动机是由45钢 玻璃钢和
石墨
构成的
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