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Re:借大家之力 重新解决一下 部分网址打不开的问题
bighead
15年11个月前
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内容:XXXXXXXXXXXXXXXXXXXX/t/6288火箭
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外国网上找到的 XXXXXXXXXXXXXXXXXXXX/t/5944高速动能导弹及超高速导弹用固体火箭推进剂 XXXXXXXXXXXXXXXXXXXX,关于AP做
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的E文资料 XXXXXXXXXXXXXXXXXXXX/t/5188低铝含量NEPE推进剂燃烧性能研究(2分 XXXXXXXXXXXXXXXXXXXX/t/5252模型火箭重心(CG)和压心,XXXXXXXXXXXXXXXXXXXX/t/6204【图】S系列发动机KNDX药柱制作方法 XXXXXXXXXXXXXXXXXXXX/t/4697[原创]KNDX火箭
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压铸教程 https://,4839[讨论]硝酸脲在推进剂中的应用的可行性 XXXXXXXXXXXXXXXXXXXX/t/3502RNX资料解密 XXXXXXXXXXXXXXXXXXXX/t/4384R-AP及DBPR-AP
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配方公布,20毫米直径KNDX发动机测试 XXXXXXXXXXXXXXXXXXXX/t/5029[原创]KCLX火箭测试版三次发射实验 XXXXXXXXXXXXXXXXXXXX/t/4882D&L-1.0火箭
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hambaby
13年7个月前
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内容:天朝已经超鹰赶镁,提前彻底消灭了以煤为
燃料
的火力发电厂!
驾照依旧免不了!2020各国的自动驾驶实用化,自动驾驶0到5级
公众号EV技研作者1900
5年6个月前
发表于
电动汽车
内容:23740项汽车专利事件】调查电动汽车背后藏着——石油、战争、地缘政治6分钟完成充电,续航320km——东芝TNO/NCM电池初探老铁,来杯特斯拉专利文献不,电磁口味的【日本庆应大学、群马大学数据】EV与
燃料
车的能量效率对比
重谈试剂硝酸、发烟硝酸、工业硝酸、浓硝酸的区别
虎哥
7年4个月前
发表于
化学
内容:火箭
燃料
需要单位体积的硝酸携带更多的氧,因此工业上开始特意生产溶解有大量二氧化氮的硝酸(而此前都是吹白了再出厂)。,而在比如火箭
燃料
研制等特殊用途中,很可能还有规定NO2含量的试剂红烟硝酸。,历史上也是在红烟硝酸作为火箭
燃料
批量供应以后,发烟硝酸才成为流行的称呼。
火箭
德阳李
14年11个月前
发表于
喷气推进
内容:复合推进剂由氧化剂,金属
燃料
,和高分子粘结剂组成1.,金属
燃料
最常用的是铝,其他的有氢,碳,锂,铍,硼,镁……3.,粘结剂 使氧化剂和金属
燃料
等固体粒子粘结在一起成为弹性基体,并提供C,H等
燃料
元素。 ,增塑剂 降低粘度,增加流动性,改善力学性能说点题外话,固体
燃料
很危险的!!,第二次世界大战后期,德国首先研制成功V-2液体
燃料
近程弹道导弹。
药头制作
ABC
16年3个月前
回复于
喷气推进
内容:左边两个就是热缩管点火头成品,用于点大发动机 这些也是,小直径点火头,用的是其它线材做导线,各种线都被我试过了 小直径点火头 这种包药方法的优点是药量可以随意增减,点火力很强,发火时间长,可以应付所有常见的
燃料
,点火药必须必须是不吸湿,易点燃,
燃料
温度高, 还有制作简单成本低, 没错,具备这些条件的非四大发明之首--黑火药不可配方: 75%KN 15%C 10%S, 干粉充分混合, 然后加入浓度5%的乒乓球丙酮溶液
关于乙类以上特种科技爱好安全的重要通知
科创网
12年5个月前
发表于
社区公务
内容:火箭发动机金属结构不属于“能够鉴定特种科技爱好的专用零部件”,而固体火箭
燃料
则属于。
喷气发动机原理及若干工作方式(转载)
液体火箭发动机
19年0个月前
发表于
喷气推进
内容:这种发动机有一多级涡轮驱动的低压压气机,而驱动涡轮的功率是在火箭型燃烧室中燃烧
燃料
和液氧产生的。,其液体部分通常使用挤压式
燃料
输送法,输送氧化剂与固体
燃料
反应产生动力
【DSA神作】XT-2项目证明文件,参考模仿用,再也不用担心写不出项目报告啦!
chemistry02
7年10个月前
发表于
喷气推进
内容: 软件仿真数据及结果证明文件III 项目所用结构与气动等材料的理化性质、力学性质等简单分析证明文件IV 项目制作发动机试车台所用的材料的理化性质、力学性质等简单分析证明文件V 项目所用
燃料
及火工品的理化性质等简单分析证明文件
Re:Re:回 26楼(拔刀斋) 的帖子
拔刀斋
13年1个月前
回复于
科学技术学
内容:钱在美国留学时的JPL和现在的KCSA没什么两样,用KP和萘熬固体
燃料
做探空火箭,用CO2气瓶做液机。
2018全球电车市场数据回顾
公众号EV技研作者1900
5年8个月前
发表于
电动汽车
内容:23740项汽车专利事件】调查电动汽车背后藏着——石油、战争、地缘政治6分钟完成充电,续航320km——东芝TNO/NCM电池初探老铁,来杯特斯拉专利文献不,电磁口味的【日本庆应大学、群马大学数据】EV与
燃料
车的能量效率对比投稿通道
大家来讨论下太空战舰对轰用什么武器好。
1235642
9年1个月前
回复于
电磁炮
内容:看来你家飞船就只是个发动机,不用装
燃料
也没有外壳,除了发动机别的什么东西都没有。
地杆菌清除核废料又发电
普利子蛋
12年7个月前
回复于
农业
内容:杰玛·雷格拉目前已经为这一研究申请专利,该技术能使微生物
燃料
电池在发电的同时能够清除周围环境中的有害物质。
【水】【原创】简单的分析一下业余火箭发动机的技术路线
154454496
5年8个月前
发表于
喷气推进
内容:火箭对发动机的要求:高反应速度,推进剂占比超过60%,比冲150s以上(经计算,
燃料
质量200g,箭体总质量600g,比冲150,空气阻力系数0.25时可以有刚过六千的射高),可重复性好;加分项:可多次点火,火箭对发动机的要求:推力可变,比冲200s以上(经计算,
燃料
质量200g,箭体总质量1000g,比冲150,空气阻力系数0.25,直径35mm时可以有刚过5500的射高);加分项:多次点火,精准推力控制,2、液机优点:高比冲(轻松200s以上),不牵扯管制,可以多次点火与精准推力控制,做大难度比固机更低,
燃料
选择多样且成本低。,3、固液优点:相对高的比冲,不牵扯管制,供给上比液机略简单,跟固机在各方面一脉相承,冷却设计简单,加工要求稍低,可以多次点火与精准推力控制,做大难度比固机稍低,
燃料
选择多样且成本低。,成本:20元每千克左右用途:20mm以上的发动机皆可使用,不过要做太大就不如APCP了,毕竟搞大之后同样总冲决定价格的更多的会是发动机外壳的尺寸而不是
燃料
。
3D打印小火箭踩坑(经验交流)
ouybg
1年0个月前
专栏文章
低成本开源火箭
内容:20230916更新如下:调整头锥长度为 半径:头锥长度 为1:5 左右尝试将气心偏向后移动,但是由于固体
燃料
发动机质量相当大,未来可能会考虑减少发动机质量或配平重心。
KCSA 萬戶-Ⅰ型火箭 實時信息集合帖
焓熵`
13年4个月前
回复于
喷气推进
内容:控制程序一块,现以进入修正验证阶段 2.发动机及
燃料
(子林负责) 发动机已由猴子及焓熵重新设计,由焓熵寻找车床加工完成。,
燃料
原料到位,但是预处理工作(干燥,研磨)均为进行。 ,2.发动机及
燃料
部分 此次项目的发动机部分由张子林(子林)负责。,对于你的“特殊情况”——忙,我们大家都是,我为了这次项目翘了多少课,你们也都不知道,一些理应你负责的事情(
燃料
原料的准备及搬运,还有按时完成
燃料
浇筑工作),最终还是要我来承担,我只能说我尽力,但是我希望以后这种事情
【试车成功】15mm AP/HTPB 微型固体火箭发动机
刺猥
7年6个月前
发表于
喷气推进
内容:虽然我知道环不能代表什么……但我依然很高兴(目前为止基本都在看火) 喷管结构基本一样,固定环加上了我自己的元素,在堵头处做了点火头,
燃料
是高铝AP/HTPB。
设想改装一架亚轨道飞机
sol81
12年8个月前
回复于
极客DIY
内容:5,改装原来的进气道,扩大成
燃料
箱6,保留原来的起落架和舵面操纵系统7,起飞方式改成垂直发射,个人觉得能飞50KM就够了,超过这个数就算赚了。
[原创]彻底抛弃汽油:电动车辆的未来战略
abednego
17年6个月前
回复于
极客DIY
内容:相反
燃料
能源污染就低多了,只要工况控制的好,污染是极低的,美国的汽车比我们的多,也没有见人家城市污染这样重。
KNPSB燃料45mm发动机研制及试车失败报告
御坂18650
2年10个月前
回复于
喷气推进
内容:改进的重点在于找到室压严重偏高的原因,我个人认为有几个可能的原因:1,燃速数据与实际不符,导致设计喷燃比过高2,侵蚀燃烧相关,如两可燃端面未隔开一定距离3,燃面异常扩展,如隔热层窜火其中1不了解这个
燃料
的特性不做评价
论坛火箭板近期神作——电子火箭推力测试台+ Rap金属机试车+马赫环
LShang001
10年4个月前
回复于
喷气推进
内容:接下来是我的Rap发动机的试车以及推力数据采集: 做了四节Rap,每节长4cm,这次由于没有用真空仓,所以
燃料
柱内应该有较多气泡,中空也打歪了一点,不过不影响使用 关于我的金属发动机的具体参数:https
KCSA 萬戶-Ⅰ型火箭 實時信息集合帖
焓熵`
13年3个月前
回复于
喷气推进
内容:紧 急 通 知就目前形式与进度来看,预计周日进行WH-1号的整体总装工作,并且完成
燃料
安装。
纸制品大全(加上后期补充的,原创绝对超过20个)
七公里垃圾站职业技术学院
10年0个月前
发表于
喷气推进
内容:内凹抛物线,扩张比6的扩张段 在笔头那段热缩个绳比较好用: 2.如果你觉得一锅100g硝唐不好处理的话,就做一节18cm(18mm外径的药柱),在他干之前,打孔,实测密度1.75g/cm3,多余的搓
燃料
棒导火索
《科技新时代》:美军太空武器揭秘
mass_lynnxy
18年11个月前
发表于
核技术与核仪器
内容:最初,美国航空航天局的地面控制中心以为这是由于DART的
燃料
耗尽了—此时DART仍然距离目标卫星有上百米的距离。,这种无人驾驶的飞机将使用冲压发动机,以液氢为
燃料
。,除了以上目的之外,将于今 年9月发射的“轨道快车”还将验证在轨
燃料
补充技术。
新人来报道,懂化学的来聊聊,高锰酸和高浓度过氧化氢做液相发动机
lily
15年6个月前
回复于
喷气推进
内容:
燃料
的推力用什么单位来计算和表述?
100mm全金属KNSB发动机测试
ALSK
3年2个月前
回复于
喷气推进
内容:还有密封性能也非常重要,我曾经做了两个一模一样尺寸的80发动机 使用Ap-HTPB
燃料
一个是铝壳一个是复合材料 铝壳的堵头密封没有做好发动机工作后屁股开始冒烟接着两头燃烧 但并没有爆裂。
体验了下ABC的缩口技术,是否算侵权行为?
test100
9年5个月前
回复于
喷气推进
内容:XXXXXXXXXXXXXXXX/t/72940“原料是学校里找的 他们叫ap 具体是啥 真不清楚 化学东西 不太懂”XXXXXXXXXXXXXXXXXXXXXXXX/t/73198 (这个帖子里本来说
燃料
是含能
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