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LH4-B 设计图全公布 (一种不错的非金属固体发动机设计)
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9年0个月前
回复于
喷气推进
内容:楼主可以试试
碳纤维
壳体(可重复利用),我已经想要把304换成
碳纤维
(之前会做几个小的
碳纤维
,熟悉下
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卢云雷
12年4个月前
回复于
喷气推进
内容:可以用
碳纤维
吗?,用
碳纤维
缠绕,不知道
碳纤维
的价格,或许玻璃纤维便宜嘛!
LH4-B 设计图全公布 (一种不错的非金属固体发动机设计)
FROZEN巨擘
9年0个月前
回复于
喷气推进
内容:引用 h13:楼主可以试试
碳纤维
壳体(可重复利用),我已经想要把304换成
碳纤维
(之前会做几个小的
碳纤维
,熟悉下
碳纤维
的性能),可能会一不小心跑在楼主前面 那好啊,一起进步,一起分享啊,经验都是宝贵的!
关于火箭壳体材料的研究
ksama
12年11个月前
回复于
喷气推进
内容:6
碳纤维
材料 这种材料有大爱.....,
碳纤维
是一种力学性能优异的新材料,它的比重不到钢的1/4,
碳纤维
树脂复合材料抗拉强度一般都在3500Mpa以上,是钢的7~9倍,抗拉弹性模量为230~430Gpa亦高于钢。,通用型
碳纤维
强度为1000兆帕(MPa)、模量为100GPa左右。,随着航天和航空工业的发展,还出现了高强高伸型
碳纤维
,其延伸率大于2%。,用量最大的是聚丙烯腈PAN基
碳纤维
。
【猜想+求助】关于电磁铁+弹簧做横纵向分离器的猜想和关于水压试验、碳纤维管的问题
HXKRRRR
6年11个月前
回复于
喷气推进
内容:
碳纤维
本身在空气中高温下稳定性是不太好,但是
碳纤维
管还有树脂基体(通常是环氧、酚醛或者呋喃树脂),把
碳纤维
和空气隔开了。,再加上
碳纤维
管本身导热性不好(也是基体的原因),与空气接触的部分温度不会有明显升高,所以能用。
【猜想+求助】关于电磁铁+弹簧做横纵向分离器的猜想和关于水压试验、碳纤维管的问题
chemistry02
7年5个月前
回复于
喷气推进
内容:引用 6111cng:嗯……最近我和HXKRRRR也讨论了一下
碳纤维
的问题……具体还得到手再测试一下……但是最近跟专业人士交流了一下发现
碳纤维
缠绕壳体的确有在使用,但是小型火箭是否适用还得再做一些实验吧,我用的是
碳纤维
管,不是碳丝。,目前需要一些关于
碳纤维
管的数据。
LH4-B 设计图全公布 (一种不错的非金属固体发动机设计)
七公里垃圾站职业技术学院
9年0个月前
回复于
喷气推进
内容:我也查了查资料,
碳纤维
的话抗拉强度1000mpa,40cr也才980左右(没记错的话),但是和人的工艺影响较大,所以准备买成品。,我的304,1.5m6.5kg,
碳纤维
1kg不到而且我的304的话设计还有缺陷(可惜管子已经买了),我能买到的
碳纤维
正好能够拟补这一缺点
碳纤维
不能够上车床,所以喷口固定方式还得用螺钉我能买到的
碳纤维
和碳布价格
电磁实验,原创,第一次做,只做九级,有图有真相,流水篇,不定时更新
三水合番
8年7个月前
回复于
电磁炮
内容:引用 liunian198:碳管外层是不导电滴
碳纤维
布加树脂卷制的
碳纤维
管不导电,但是有种
碳纤维
管貌似是纯碳的,可以导电,以前做电炮的时候曾经买过一根7*6的用火花打孔做了管子。
深入讨论炮管涡流的影响有多大
莱特
9年5个月前
发表于
电磁炮
内容:6、
碳纤维
管。,所以目前更倾向于使用
碳纤维
管制作炮管。 ,但是问题就来了,
碳纤维
管确实是导电材料,用万用表简单测量,表面电阻最小值只有零点几欧姆。,先说说我个人的一点看法:从材料上分析,
碳纤维
管的材质是由
碳纤维
布混合环氧树脂制作而成,
碳纤维
和石墨一样都是导电材料,由于混合了环氧树脂,所以电阻率要比纯石墨大一些。,换做
碳纤维
管分析,
碳纤维
管就如同一个单匝线圈,线圈炮的发射绕组和这个单匝线圈 同轴耦合,组成一个空心变压器。
电解氯酸盐或氯化物溶液时用什么电极比较合适
power_rdx
6年4个月前
回复于
化学
内容:引用 HCN:
碳纤维
导电且淘宝到处都在卖
碳纤维
发热材料
回 25楼(qq363606096) 的帖子
luobinme
11年2个月前
回复于
电磁炮
内容:
碳纤维
管,应该不会软化!,好的
碳纤维
材料据说强度是钢的好几倍~!
大功率电解水试验
lovehongkong
13年8个月前
回复于
电子技术
内容:用
碳纤维
,玻璃纤维,
碳纤维
的组合可以很容易并联超多电解曹
有人清楚碳纤维的用处么
HMX
17年0个月前
回复于
化学
内容:
碳纤维
的强度比钢大是有前提的,而且只有个别指标比个别牌号的钢大。,有些科普作品过分采用夸张手法表现
碳纤维
的优点,对其缺点视而不见,容易误导读者。,
碳纤维
的实际应用并不多。
关于如何用人工降雨弹改固体火箭的问题
Tvanerti
3年1个月前
回复于
喷气推进
内容:外壳是玻纤,不是
碳纤维
管。,因为
碳纤维
管比较贵
knsb45mm碳纤维发动机制造
Antonio
1年5个月前
回复于
喷气推进
科创基金
内容:(我可以明确的告诉你,即使在燃气速度达不到音速时,也会在短时间内使喷喉变成不规则形状)如何保证
碳纤维
管加工时不会断裂?,如何确定
碳纤维
管耐压设计合理?,靠“
碳纤维
耐压高”这种模糊的结论是远远不够的。
【申请】关于暂不进行碳纤维复合材料管水压试验而直接应用于固体火箭发动机制作的申请
mayablue001
5年3个月前
回复于
喷气推进
内容:其实不建议小尺寸的发动机采用TC4内胆+
碳纤维
缠绕这种方案,这种方案我06年就做过。,
碳纤维
缠绕就更麻烦了,还有前封头、喷管结合处挂
碳纤维
丝的问题,缠绕是有角度的缠绕,还需要预紧力,
碳纤维
丝要挂胶,还要固化,还有最小缠绕层数的限制,至少得缠3层吧。,大口径尺寸发动机采用
碳纤维
壳体发动机是合适的,不过这远超出了论坛所讨论的范畴。
knsb45mm碳纤维发动机制造
如雨
1年5个月前
回复于
喷气推进
科创基金
内容:
碳纤维
只要一打孔比铝合金还拉
火箭喷嘴耐热性讨论
南山猎手
12年3个月前
回复于
喷气推进
内容:有人研究过用
碳纤维
没?,
碳纤维
耐高温,用这种材料是不是额可以?
白鸟计划(持续更新中)最近更新至2023年11月12日
阿卡林Akkariin
1年2个月前
回复于
喷气推进
内容:储罐设计完成 复合材料储罐 氢储罐是纯
碳纤维
氧是铝锂合金 缠绕
碳纤维
HTPB推进剂 碳纤维发动机地面试车。
HXKRRRR
8年0个月前
回复于
喷气推进
内容:直接用
碳纤维
做燃料箱寿命不长吧?,我记得
碳纤维
在氧化性环境+高温条件下是很容易被氧化的。
碳化硅的导电性
power_rdx
8年0个月前
回复于
电子技术
内容:就好像说
碳纤维
丝导电性良好,但是
碳纤维
制品电阻就比较大
KNDX固体火箭求助
HJHZJY
9年7个月前
发表于
喷气推进
内容:新人设计一个KNDX火箭,外壳是7075航空铝52*45mm,现在需要45*42的隔热层,可是PVC没有这个规格的,就想
碳纤维
管是不是可以呢?,
碳纤维
管导热性很差的,这样子可以起到更好的隔热吧?
【第二次试车】HTPB推进剂 碳纤维发动机
星河航天
8年8个月前
回复于
喷气推进
内容:
碳纤维
碳纤维
碳纤维
.
knsb45mm碳纤维发动机制造
谁叫小明
1年5个月前
回复于
喷气推进
科创基金
内容:凭经验来看用石膏做堵头的话,照楼主画的图做出来的石膏堵头有大概率会崩掉,估摸碳纤管的作用还没发挥出来堵头就已经爆掉了,我的建议还是不要为了
碳纤维
而
碳纤维
,在这个尺寸上设计发动机该用什么材料,在这个室压情况下应该用什么材料的堵头都没搞清楚的话
有奖金。求各位大侠推荐一种材料
SolarEchoes
8年11个月前
回复于
极客DIY
内容:
碳纤维
(carbon fiber,简称CF),是一种含碳量在95%以上的高强度、高模量纤维的新型纤维材料。,
碳纤维
“外柔内刚”,质量比金属铝轻,但强度却高于钢铁,并且具有耐腐蚀、高模量的特性,在国防军工和民用方面都是重要材料。,[1-4]
碳纤维
具有许多优良性能,
碳纤维
的轴向强度和模量高,密度低、比性能高,无蠕变,非氧化环境下耐超高温,耐疲劳性好,比热及导电性介于非金属和金属之间,热膨胀系数小且具有各向异性,耐腐蚀性好,
碳纤维
与传统的玻璃纤维相比,杨氏模量是其3倍多;它与凯夫拉纤维相比,杨氏模量是其2倍左右,在有机溶剂、酸、碱中不溶不胀,耐蚀性突出。
我有点怀疑我的的计算结果,求大神鉴定
HXKRRRR
7年6个月前
回复于
喷气推进
内容:引用 虎哥:
碳纤维
根据牌号不同,强度差别较大。,但是需要注意两个问题:1、淘宝上买到的
碳纤维
管几乎是没有保障的,必须做水压测试。,我打算用
碳纤维
布窄条浸渍聚酰胺树脂或者环氧树脂螺旋缠绕,应该能相对稍微靠谱一些。
事故报告:单级感应炮的惨死现场
Ball_Lightning
1年5个月前
回复于
电磁炮
内容:最近我看到很多使用
碳纤维
布包裹模型作装饰的视频,才了解到还有
碳纤维
布这种神仙材料(据您说
碳纤维
的杨氏模量极高,那么,如果我发挥它抗拉的特长,也许能够将线圈勒得紧一些。,我想,能不能用一种剪切模量极高的胶水将一条宽度大于线圈长度
碳纤维
布粘在线圈上,绕一截,涂一点胶水……绕成一个筒形,最后往两边出头的部分灌环氧。
CuteO₂-42-B固体火箭发动机制造
Winter
4年11个月前
发表于
喷气推进
科创基金
内容:改进CuteO₂-42发动机: 尝试使用
碳纤维
布缠绕工艺制造固体火箭发动机,以提升发动机燃质比、提升CuteO₂-42型发动机可靠性
猜猜这枚火箭能飞多高
猎鹰
9年4个月前
回复于
喷气推进
内容:引用 神の左手:哇,神做,纯
碳纤维
的啊,能飞10公里高吗?,
碳纤维
挺贵啊,光是箭体+头锥就花了800,不过重量非常轻,0.7kg左右.
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