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全部话题 - 话题: welding
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t****u
发帖数: 10218
1
来自主题: Cycling版 - 请问小孩的好bike到哪里买?
Specialized has bikes for all ages. You can read about them on Specialized
website, and pick one up from a local dealer.
Some custom builders can also weld a frame for you.
k********8
发帖数: 7948
2
来自主题: Cycling版 - 最终在LBS买了Specialized Allez
新手,一上来不敢买太好的,就像吃菜不能一上来吃海鲜一样呵呵
总共跑了2个bikeshop,问了都说可以帮我租装bikedirect的,但是都说bikedirect的那
些个frame太次了云云,okok那好吧我就还是第一辆车先在LBS买吧,以后换车再说吧
这个给了我$730出门。嗯!我知道没有bikedirect的便宜,但我也还算开心,终于可以
出门骑车了!
FRAMESpecialized A1 Premium Aluminum, fully manipulated tubing, smooth weld,
compact race design, integrated headset REAR SHOCK FORKSpecialized FACT
carbon legs, aluminum crown and steerer HEADSET1-1/8" sealed Cr-Mo cartridge
bearings integrated w/ headset, 20mm alloy cone spacer, w/ 20mm of spacers
STEMAlloy, CP bolt... 阅读全帖
p********y
发帖数: 5141
3
来自主题: Cycling版 - 最终在LBS买了Specialized Allez
Allez有很多款呀。你这个是哪款?
头盔是可以的,只要达到安全标准就成。以前看过一篇文章,头盔高端的更多是考虑透
气,流线型,轻等因素。和安全性能关系不大。

weld,
cartridge
spacers
,
i*********5
发帖数: 19210
4
the frame is too old, doesn't have the disc brake tabs. i sent my old
litespeed frame back to the factory to get the disc brake tabs welded on it.
btw, you should use your front brake more!
i*********5
发帖数: 19210
5
this is below ENTRY level
Entry level road bike defined by me is: aluminum alloy frame + 105 groupset
- 铝架 + 105组件
比如:Specialized Allez Comp
http://www.specialized.com/ca/en/bikes/road/allez/allez-comp#sp
FRAME
Specialized A1 Premium Aluminum, fully-manipulated tubing w/ smooth welds, 1
-1/8" lower bearing
BRAKE LEVERS Shimano 105
FRONT DERAILLEUR Shimano Tiagra
REAR DERAILLEUR Shimano 105
SHIFT LEVERS Shimano 105 STI
CASSETTE Shimano Tiagra, 10-speed, 12-28
(有几样都不合格,用的是Tiagra)
d**********u
发帖数: 1135
6
磨平就好了吧 我有一个也是这样
用epoxy 或者 jb weld填坑 打磨平 再polish一下
用起来不差
r**********n
发帖数: 3914
7
在网上, welding supply, 或在saltybugger买。
http://www.saltybugger.com/wire.htm
k****n
发帖数: 2499
8
来自主题: Fishing版 - 求助找一个特别的nut
找welding shop问问可不可以加工
t*******y
发帖数: 10477
9
给我发包子吧。

这些估计速度比较慢,重量倒是相对比较轻。老大除了考虑sea eagle,在inflatable
世界里,两个品牌是鼎鼎大名的,Zodiac和Achilles,产品分军用/即军事,救火,救
灾,工作inflatable,这些价格不菲,用几十年没问题。
民用部分,这两家公司的inflatable主要是给大船,帆船,做dingy boat用,即cruise
时候,大船无法靠近海岛,沙滩,或者其它的娱乐项目,或者从码头到anchor的大船,
使用inflatable,所以抗岩石摩擦能力较强,一定的抗风浪和速度,基本都是用汽油马
达。
种类上,分RIB,即硬底和可折叠。
可折叠分类后面介绍。
材料部分,主要是PVC和Hypalon,差别主要在PVC抗磨,尤其是Zodiac,Hypalon是杜邦
公司生产,停产几十年还是十几年了,但各家公司依然生产Hypalon为主要材料的
inflatable,原因是一般的Hypalon材料,可以使用高达30多年,一般设计上就是二三
十年,厂家保修至少10年起。Hypalon不怕UV,热带高温高热whatever怎么高,放在阳
光下直晒十年二十... 阅读全帖
D****R
发帖数: 6053
10
来自主题: Fishing版 - 背部疼痛?运动可以帮助你.
DAVID GREENE, HOST:
On a Monday, it's MORNING EDITION from NPR News. I'm David Greene.
STEVE INSKEEP, HOST:
And I'm Steve Inskeep.
Today in Your Health, we report on the most common reasons people go to the
doctor: back pain. More than 1 of every 4 adult Americans say they've
recently suffered a lower back pain, and that figure is on the rise.
Billions of dollars are spent every year treating that problem. But many
specialists say less medical treatment is usually more effective.
As part of our ... 阅读全帖
g********e
发帖数: 44
11
来自主题: Fishing版 - 求教 鱼竿 聚酯胶
一般的 的 epoxy 行不行?
http://www.walmart.com/ip/J-B-Weld-ClearWeld/23848096
h******1
发帖数: 1930
12
来自主题: Fishing版 - 飞钓视频 求诊断
周末有点忙。。本来想着能把flyline weld好,clean干净然后去钓一下午鱼,结果事
与愿违,鱼没钓成,线也没修好。买的Mucilin Silicone Green Label还要几天才寄到
,所以就连线都没有clean。
好在赶在周日傍晚去家旁边的河边甩几杆,求朋友录了个小视频,让大家给诊断诊断。
因为flyline的loop坏了,所以就没有绑leader,感觉有点奇怪。就是flyline的尾端
motion太多,double haul的时候很恼人。。。也许是平时我的leader就这么乱,只是
因为看不太清楚,现在leader的motion在flyline上提现出来了,所以就很丑?
single hand spey的视频也有一段,感觉就算是 single spey和snap T的D loop load
不上劲儿。这个时候没有Leader就赖皮了,多没劲儿也能翻过去。要是上了sinktip估
计很多抛投就不大对了。
m*******n
发帖数: 5103
13
来自主题: Fishing版 - 今日渔记 -- Made in China?
今天突然没事,而且气象预报说雨要一直下到月底我出国,也就是说如果今天不出去,
再钓鱼那就是一个月以后的事了。所以决定今天不管怎么样也要出去,这是 fisherman
's social responsibility -- 渔者不能只顾着自己的方便,也要对小鱼负责,不能让
人家等白了少年头也没人来钓它。
今天河水还是太高,那就去海里吧。今天时间比较多,可以去一个多钟头之外的海滩。
我钓三文鱼不太考虑潮水,因为我认为它们反正是吃了秤砣铁了心要回家,高潮低潮涨
潮退潮天黑天亮都无所谓。比较重要的是雨量,下雨后河水高涨,适合它们逆流而上。
But then again,这是我的理论,别人怎么想我不知道,每个渔民都有他自己一套,冷
暖自知。
倒是现在天气凉了,保暖很重要,毕竟年纪大了,冻不得。上次在 Costco 买了几条
32°C 的秋裤,保暖效果挺不错的,今天干脆穿它两条,这样总该有 64°C 了吧?
决定走要坐渡轮的路线,虽然多花几块钱,但可以少开车 30 英里。到得渡轮码头,没
多久就上了 11:40 的渡轮,一切顺利。只是从渡轮上下来时,已经开始飘雨了。
一路向南,路上的枫叶已残,赏枫... 阅读全帖
z*****3
发帖数: 1793
14
你给的这些材料的作者Alan Fern, Dan Klein, Subbarao Kambhampati, Raj Rao,
Lisa Torrey, Dan Weld
我见过2个。权威性不足。
但是我给你材料的作者Richard S. Sutton and Andrew G. Barto是RL泰斗级别人物。
而我给你介绍的书
Reinforcement Learning: An Introduction
https://webdocs.cs.ualberta.ca/~sutton/book/ebook/the-book.html
是RL的标准教材。
v***s
发帖数: 4031
15
来自主题: Golf版 - Golf show真是好东西!
1025,1020都是mild steel, low carbon steel,很容易成型,也容易变形。 不锈钢
的杆头大部分是cast或weld的,很难forge。
x****5
发帖数: 1564
16
http://www.forgedgolfirons.com/reviews/macgregor/macgregor-mt/
The MacGregor MT Forged Irons are designed for the mid-handicap players who
would like a more traditional looking club that's still tailored to their
skill level. The forged face of the club is welded to a stainless steel body
, which uses Cup Face 360° Technology in order to allow the clubs to get
more distance and be more accurate. This use of the Cup Face 360 Technology
basically makes the entire club face very large sweet spot, o... 阅读全帖
s*****t
发帖数: 1661
17
来自主题: GunsAndGears版 - real gear
thanks.
The bolts and nuts looked ugly though it works. My final version was done by
one kind of JB weld, which is strong enough and heat resistance.
Next time I will think of duct tape first, that will make life much easier.
'v
k**********i
发帖数: 8706
18
来自主题: GunsAndGears版 - 版主进来一下
+20 notch
+30 weld
d*****k
发帖数: 580
19
来自主题: GunsAndGears版 - 洞补上了,蛋蛋到了,开练枪法了
JB Weld双管胶真是好东西,俺把原保险两头削掉,
保留定位销当然还有里面的小弹簧,固定在发火位置上,
然后再用的双管胶一封,六小时后磨平,再过十五小时,坚硬如铁。
之后用99块大洋订了1050发TT蛋,昨天刚到,拆开一看
还是南修80后产品,准备用忧郁的眼神,稀虚的胡楂子,
练出神乎其神的枪法。
补洞之前忘了照相,借用下qbq灰猫老大的两张图
f**u
发帖数: 559
20
A business owner who lives at his West Dallas welding shop killed two men in
three weeks as they tried to break in.
A 79-year-old homeowner in east Oak Cliff, awakened by his dog, struggled
with an intruder before grabbing a shotgun and wounding the man.
A retired Army warrant officer managed to kill a gun-wielding robber at a
Far East Dallas dry cleaners after his wife surprised the intruder and
handed her husband their own 9 mm handgun.
"In situations in which people would be making a decision
T******g
发帖数: 21328
21
来自主题: GunsAndGears版 - 推荐个1k左右的308 target rifle吧
嗯 FCP-K 看起来是不错,如果stock的cheek weld在好点就更好了
这个 10FP也不错,就是枪管短了点20“
Howa Axiom怎么样?
还没仔细看Rem 700系列
继续研究...
f**s
发帖数: 2225
22
来自主题: GunsAndGears版 - 还是想再让行家里手们来谈谈 TIKKA T3
tikka的问题,后面那个速尿帽有个澳大利亚的人做铝合金的卖
那个recoil lug,网上有人找枪匠做了个不锈钢的然后用TIG weld的方法焊接到
receiver上
这样两个问题都解决了
如果还嫌速尿太多,可以网上找找把扳机护圈换成金属的
其实我一直想如果在国内找个厂子做t3的金属弹夹运到美国来卖应该能小发一笔,这东
西技术含量低,适合在中国造,一个卖点是金属,另外可以做成5发的,就是不知道和
beretta/sako有没有法律纠纷
S**********s
发帖数: 4534
23
M1A想保持出好精度相当困难
以前是需要你妹级的glass bedding, 而且打着打着就得重新bed
现在有了ebr, JAE这些铝制枪身, 省了bedding, 提高精度就要看barrel tensioner
; 想把这个barrel tensioner调好, 你得带一箱子弹药。
然后就是镜架的问题。 首先是你得receiver spec, 如果跟G.I spec有差距, 许多镜
架都装不上; 装上以后不一定就稳, 得把什么loctite还是welding的都弄上去, 有
的还会影响抛壳。
拆起来麻烦, 擦起来更麻烦, 还要从枪口擦
所以,除非你对M14有特殊感情, 还是买AR10吧。
s****i
发帖数: 5469
24
来自主题: GunsAndGears版 - 新年第一天DIY
现在14mm的套筒已经上不去了, 严重变形, 比你照片中那个还要厉害. 15mm的上去还是打滑. 曾经考虑过JB weld粘一个大号螺母, 这样就可以用我的breaker bar. 如果想锉平的话, 推荐用什么工具? 砸的话恐怕没空间, C-clamp我有, 不过另一边也够呛有足够的空间.
t******8
发帖数: 2803
25
装上Scope以后贴腮好困难,如果没有cheek weld的话,非常不符合Appleseed
的教导。。。所以想找一个给AK原版枪托设计的cheek raiser。不知道有没有?
S**********s
发帖数: 4534
26
来自主题: GunsAndGears版 - 战术霰弹打slug归零的问题
the sad part about bead sight is....there is probably no zero.
you have to HAVE a rear sight in order to zero.
bead is just....a ball. depends on your cheek weld, your zero pretty much
changes every time, but it really makes no difference since you're not
shooting for nail driving accuracy with a bead.
H****r
发帖数: 16240
27
来自主题: GunsAndGears版 - 当时应该买这个AK夜瞄的……
我以前在哪里见人贴过卖氚光管的
好像三十块钱还是多少
所以突然想到,要是直接在这个准星上打眼,然后JB weld进去一个氚光管
肯定很给力
H****r
发帖数: 16240
28
来自主题: GunsAndGears版 - Saiga IZ-240 5.45x39 rifle改造
要我自己做肯定就是jb weld粘一段
主要saiga原厂枪管前面车细了一段,准星座和军版的内径不通用,而且是直接套上去
的,也不像军版AK那样下面有两个销钉。
T*R
发帖数: 25894
29
AK flat need to be bent and heat treated, maybe some welding before it can
be functional. I am not sure how the barrel is attached, likely pressed on.
Do you have all the required tools and can you do all that in a short period
of time? If yes, by all mean, go for it.
S**********s
发帖数: 4534
30
来自主题: GunsAndGears版 - 加州太惨了
the problem with load from top with welded magazine is that it's harder to
convert back to detachable magazine when SHTF.
bullet-buttons are easier to take off.
what's even better is solar tactical kydex grip wrap
those and the "not-so-permanently-modified" 10/30 magazines, are easily
converted back to normal when SHTF.
h*********r
发帖数: 1943
31
来自主题: GunsAndGears版 - how much will you spend?
There're too many bicycle frames using 7075 frames, in fact, 7075 is mainly
used in ground transportation area. Talking about bicycle, $$$ 7075 frame is
expensive only when compared to 6061 (yes XLR chassis is using this
material), yet it is still poor man's material compared to $$$$ carbon fiber
ones (and you think they're cheap!). The biggest problems of this alloy is
that it cannot be welded, which limited its use in many field, the machining
of 7075 is not a big issue. If somebody came to s... 阅读全帖
l***a
发帖数: 2677
32
来自主题: GunsAndGears版 - Bushmaster Predator upper咋样?
这个upper口碑如何?好像就是24" varminter的upper缩短成20"枪管
1:8,20" Fluted Extra Heavy 1" diameter Barrel。跟我现在的1:7 twist, 16″
Govt Profile 0.75" diameter barrel比打远程会有很大提高吗?
http://www.bushmaster.com/products.asp?cat=6
20" Predator Upper Receiver/Barrel Assembly
Adapted from our very accurate and successful 24" Varminter, the Predator
Upper Receiver/Barrel Assembly's 20" Fluted Extra Heavy Barrel is button
rifled 1 x 8" to stabilize the heavier 69-77 grain bullets that a predator
hunter/caller would choose for b... 阅读全帖
f****a
发帖数: 4708
33
来自主题: GunsAndGears版 - 女兵+88狙,这个组合很坑爹啊
练pose。
不可能练击发的,charge的时候那些装模做样的子弹肯定掉下来。
练瞄准的话,应该练Cheek Weld,子弹一样掉。
S**********s
发帖数: 4534
34
来自主题: GunsAndGears版 - 9/11十年祭,我在反恐作战中度过
霰弹打得不错, 尤其是上子弹的时候没出岔子, 比我强。
发点我自己打shotgun的心得:
后座的时候就开始撸, 把pump和follow-through连在一起, 下一发已经上膛时,前准
星也应该在目标上。
从腰部往上,除了左手pump, 右手手指扣扳机, 其余关节都要“锁死”在一个姿势保
持不动, 换目标时整个上半身也要保持一个姿势一起动; 脑袋保持一个cheek weld,
眼睛看哪枪打哪;
装子弹的时候, slow is fast, less is more, 不要贪多贪快, 越稳装得越快。
T*R
发帖数: 25894
35
来自主题: GunsAndGears版 - 红点+倍瞄的Mark III Tactical P4
用红点的时候还we不weld cheek啊?
T******g
发帖数: 21328
36
来自主题: GunsAndGears版 - AR 15 装Scope的问题
1,scope没装好,晃
2,scope太高,没有cheek weld
c******k
发帖数: 237
37
ops, I typed too fast, permanently welded muzzle is not within 'evil feature
'.
A firearm rifle in NY can not have more than one 'evil feature'; this means,
if you choose pistol grip, you have to give up any of others.
These are so called 'evil feature':
-a folding or telescoping stock;
-a pistol grip that protrudes conspicuously beneath the action of the weapon;
-a bayonet mount;
-a flash suppressor or threaded barrel designed to accommodate a flash
suppressor;
-a grenade launcher; or ...
faint... 阅读全帖
f****a
发帖数: 4708
38
来自主题: GunsAndGears版 - 兼顾靶 / 猎的栓动?
记得如果cheek weld一样的话,parallax有错也没有关系啊。难道不是麽?

miss了600码的靶子
S**********s
发帖数: 4534
39
来自主题: GunsAndGears版 - pistol grip的shotgun不好操控?
手枪柄分pistol grip和pistol grip only (PGO)
前者在某些枪上比较好用, 后者是拍电影用的。
长枪的优势就是有个枪托可以抵肩。 枪托也可以帮助提高瞄准速度,射击速度和精度
。 前提是掌握好cheek weld, 每次一举枪, 脸蛋都要牢牢的靠在枪托上固定的一个地
方, 这样只要你眼睛看着目标, 一举枪, 照门就在眼前, 前准星就在目标上了;
枪托允许你用身体抵消后座, 减少follow thru时间。
相比之下PGO只让你的枪短一截。 如果空间狭小真是个问题, 那我建议你去买Keltec
KSG
f*********n
发帖数: 11154
40
来自主题: GunsAndGears版 - 【转】Review: Weatherby Vanguard Sub-MOA TRR
http://www.thetruthaboutguns.com/2011/12/foghorn/gun-review-wea
The Weatherby Vanguard Sub-MOA is nothing more than a standard Weatherby
Vanguard rifle with some extra bells and whistles. Everything about the
action is identical to the Vanguard Carbine, from the “meh” trigger to the
look and feel of the bolt and safety. So if you were buying one of these
with the hopes of a better trigger than the “cheap” version you’re out of
luck. The only difference between the standard Vanguard series and th... 阅读全帖
S**********s
发帖数: 4534
41
来自主题: GunsAndGears版 - how about this shotgun?
28" barrel is for hunting.
a home defense shotgun is more of a riotgun, which is 18" - 20" barrel
unchoked (some call it cylinder choke).
the length of the magazine tube should be up to the length of the
barrel,
which is 7-8rd + 1 in the chamber with standard 2 3/4" shells.
this is my setup:
Mossberg 590, 20" barrel, 8+1. some consider this a little too long for
home
defense, i say let the operator decide what's best for them.
features:
simple bead sight - get a good cheek weld then point and sh... 阅读全帖
S**********s
发帖数: 4534
42
来自主题: GunsAndGears版 - 今日靶场受挫小记
to fix the cheek weld problem, you can get one of those:
http://www.itcmarksmanship.com/c-2-itc-cheekrest.aspx
I have it on my M1A and sometimes i switch it to my Mossberg 590 when I want
to shoot shotgun.
Cheap, sturdy, and very comfortable. I recommend the black "wetsuit" model.
S**********s
发帖数: 4534
43
比SCAR 17S重两磅, 还贵1000多。 慢走不送。
P.S: 附上一篇老段子
http://larrycorreia.wordpress.com/2007/10/09/hk-because-you-suc
"An open letter to the gun community from HK’s marketing department: In a
world of compromises, some people put the bullets in the magazine backwards
…But it doesn’t matter, because our gun is on the cover of the Rainbow Six
video games. Look how cool that SEAL coming out of the water looks… If you
buy a $2,000 SOCOM, you will be that cool of an operator too. And chicks
will dig you.
At HK, ... 阅读全帖
x*7
发帖数: 11281
44
来自主题: GunsAndGears版 - CZ527精射化改造
先放几天,等JB welding 都干透了以后就做
x*7
发帖数: 11281
45
来自主题: GunsAndGears版 - CZ527精射化改造
我晕,这个是去年一月发的帖子呀
pillar是用JB WELD粘结的
其实还有些网站买钢的spacer,或者是用steel tube
自己切到合适长度,我比较懒,怕钢的制作费时,没用
回复dengdengdeng
我用的是牛仔推荐的色拉油喷雾
PAM OIL
s****r
发帖数: 31686
46
来自主题: GunsAndGears版 - CZ527精射化改造
色拉油直接喷在JB WELD 上面? 需要喷多少? 一薄层还是厚点?
x*7
发帖数: 11281
47
来自主题: GunsAndGears版 - CZ527精射化改造
两回事,JB WELD是做pillar的,那个弄完了才做了bedding
我用的是DEVCON的plastic steel putty
http://www.midwayusa.com/product/647161/devcon-plastic-steel-be
色拉油是喷在action上面的,从唯一这次经验看,
要喷厚一些,完全覆盖,有些我手软了,喷完擦拭过的地方,
很明显的容易粘连
S**********s
发帖数: 4534
48
来自主题: GunsAndGears版 - 手槍站姿 - Weaver vs Isosceles
这应该是国内的装兵党写的...这年头国内很流行装兵。
话说我一直是用modern iso, 但最近发现modified weaver更适合我---胳膊伸直锁死手
肘,脸压低贴在胳膊上就像步枪和霰弹的cheek weld. 下次打靶一定要试试。
S**********s
发帖数: 4534
49
来自主题: GunsAndGears版 - 最普通的AR枪托
这个很轻。
我觉得不好的地方就是cheek weld在buffer tube上, 一开枪嗡嗡的声音...其实这个
问题fixed stock也没好哪去。
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