G***G
发帖数: 16778 | 1 just bought an electric impact wrench.
I am wondering if I need to buy impact wrench socket.
I have a lot of regular socket. can they be used for impact wrench? |
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w*******y
发帖数: 60932 | 2 Sears has the Craftsman Nextec Right Angle Impact Driver for 59.99 (Regular
Price is 99.99). They are also running a promotion for a free Nextec 12v
Cordless Drill/Driver. You will have to pay tax for both items (where
applicable), but when you add the drill to your cart, it'll ring up 0.00.
The only thing is the free drill doesn't come with a battery or charger,
however, you will be able to use the battery from the impact driver.
link for impact driver: Link:
http://www.sears.com/shc/s/p_10153_... 阅读全帖 |
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w***w
发帖数: 6301 | 3 US Elections: The impact for online poker
November 6th, 2008
As the dust settles on the 2008 US elections that sent Barack Obama to the
White House and increased the Democratic majorities in both houses of
Congress, many online poker players are wondering what impact these
political shifts will have on the state of online gambling in the US.
The immediate impact in the markets was a positive one, suggesting that
investors believe the elections will increase the potential for legal,
regulated onl |
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l****z
发帖数: 29846 | 4 by John
Post image for How Has Dodd-Frank Impacted Your Checking Account?
In late 2008, the U.S. economy experienced a sharp decline. Much of the
American public placed the blame for this “Great Recession” on large
financial conglomerates, as the collapse of Bear Stearns, Lehman Brothers,
and others triggered a bailout of “too big to fail” institutions.
In response to the events, the U.S. government passed the Dodd-Frank Wall
Street Reform & Consumer Protection Act to better regulate the financi... 阅读全帖 |
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m****w
发帖数: 36 | 5 "....
The SAGA of the impact wrench
My first attack against The Bolt with powered tools began with my trusty CH
260 ft/lb impact wrench. I had figured that 260 ft/lb was more than I would
ever see, so I fully expected to have the bolt off in seconds. The wrench
banged away at it, but would not budge. I was incredulous. I started to ask
around on the Internet as to whether the bolt came off the normal way, and
even hit it to the right just to make sure I wasn't insane.
At this point I went out |
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f**********n
发帖数: 3081 | 6 主要想利用一下那个空压机。 rotate 个轮胎啥的。 买的ALDI的空压机比较挫，
2.6CFM@90PSI， 好像一般的air impact wrench 都需要4-5CFM, 网上调研了一下，
说是空压机的CFM低于impact wrench的CFM requirement，也能用，不过就是持续几秒
就得等着空压机的气压上来，如果空压机的CFM高于air tool 的CFM, 就可以持续用了
。 |
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l****g
发帖数: 420 | 7 【 以下文字转载自 SanDiego 讨论区 】
发信人: lerdog (lerodg), 信区: SanDiego
标 题: 求教一个 Insurance impact on California right turn not stop on red ticket
发信站: BBS 未名空间站 (Thu Jan 27 18:09:45 2011, 美东)
I heard only one point for this kind of California right turn not stop on
red ticket, so there will be no insurance premium impact. Anyone can confirm
this? |
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d*******8
发帖数: 87 | 9 这个是我用来拆卸轮胎用的工具，用了2大约两年，很好用。
Nocord WWT-1430 DigiWrench:
The DigiWrench a Digitally Controlled 12 Volt DC DIY Impact Wrench is the
only impact wrench of its kind in the world allowing you to digitally select
your desired amount of torque. It has a 1/2 Drive 250 Ft-Lbs ratio. With 4
socket sizes you don t have to worry about it being a perfect fit. The
sockets themselves are specially designed to compensate for over and under
tightening. The Patented Digital Torque Control with LED display will al... 阅读全帖 |
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a******o
发帖数: 16625 | 10 事实是很容易拧断，很简单，换油的时候拧不开，加了根杠杆，就拧成麻花了。
还有一次ratchet的头给拧下来了，你可能说我的工具太烂，但是，当我把那个本田ATF
螺丝最后用breaker bar拿下来的时候，那个高强度的四脚母螺丝已经被拧的齿牙咧嘴
了。这个螺丝的扭矩应该是39.我大概用了100多才把他搞下来。
不要太相信数字，camry那个crankshaft螺丝扭矩据说是89，我就240的电动impact，纹
丝不动。据说没400的impact打不开。 |
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a********c
发帖数: 3657 | 11
ATF
电动impact就是joke。标称700的连150的lug nut都搞不定。hft 9刀的air impact轻轻
松松。 |
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d*b
发帖数: 21830 | 12 impact wrentch拧紧螺丝的时候，需要装torque stick:
我估计你肯定是第一次听说这玩意，你没拧断过说明你luck,但不等于你做对了，shop
procedure里有严格的规范，要求impact wrentch只能拧松螺丝，不能拧紧螺丝。你这
种人要在航空工业界这种需要x-ray探伤的行业，早被扫地出门了。
千万别嘴硬，多听听人家的经验。 |
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m**********e
发帖数: 12525 | 13 脑残无极限
别说转接头了,连impact wrench里面特种锰铬钢做的anvil都打断过,
这锰铬钢的anvil理论强度超过1000ftlb,超过impact wrench极限功率
差不多10倍,但是就这么断了,你说,怎么解释? |
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B*Z
发帖数: 7062 | 14 你意思是车行里面用impact wrench上，也用impact wrench松，所以不会断？ |
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a******o
发帖数: 16625 | 15 事实是很容易拧断，很简单，换油的时候拧不开，加了根杠杆，就拧成麻花了。
还有一次ratchet的头给拧下来了，你可能说我的工具太烂，但是，当我把那个本田ATF
螺丝最后用breaker bar拿下来的时候，那个高强度的四脚母螺丝已经被拧的齿牙咧嘴
了。这个螺丝的扭矩应该是39.我大概用了100多才把他搞下来。
不要太相信数字，camry那个crankshaft螺丝扭矩据说是89，我就240的电动impact，纹
丝不动。据说没400的impact打不开。 |
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a********c
发帖数: 3657 | 16
ATF
电动impact就是joke。标称700的连150的lug nut都搞不定。hft 9刀的air impact轻轻
松松。 |
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d*b
发帖数: 21830 | 17 impact wrentch拧紧螺丝的时候，需要装torque stick:
我估计你肯定是第一次听说这玩意，你没拧断过说明你luck,但不等于你做对了，shop
procedure里有严格的规范，要求impact wrentch只能拧松螺丝，不能拧紧螺丝。你这
种人要在航空工业界这种需要x-ray探伤的行业，早被扫地出门了。
千万别嘴硬，多听听人家的经验。 |
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m**********e
发帖数: 12525 | 18 脑残无极限
别说转接头了,连impact wrench里面特种锰铬钢做的anvil都打断过,
这锰铬钢的anvil理论强度超过1000ftlb,超过impact wrench极限功率
差不多10倍,但是就这么断了,你说,怎么解释? |
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B*Z
发帖数: 7062 | 19 你意思是车行里面用impact wrench上，也用impact wrench松，所以不会断？ |
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h******k
发帖数: 15372 | 20 属实。以前有次在店里换了新轮胎回来拆轮子换闸皮，结果break bar都拧不开，上号
称240lb-ft的电动impact wrench都打冒烟了也打不开，全部螺丝没有一个能打开的。
最后还是去Home Depot买了一根一米多的钢管套在break bar上才拧开的。
轮胎店至少给上到了300lb-ft的扭矩，肯定是气动impact gun随便拧的。
阿。 |
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G***G
发帖数: 16778 | 21 有人懂impact wrench和普通手动wrench的区别吗？
假如没有任何东西固定crankshaft的话，为何用手动wrench，这个你永远也扳动不开，
无论你多大的力气。
但是用impact wrench，你就能扳开，好像让这个pulley固定了一样。
请问这是什么原理？ |
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j**l
发帖数: 337 | 22 congrats first for your NSF grant!
Yes, you can remove one GRA.
In Budget Impact Statement, just say no impact, the PIs will take care of
the extra work so that the scope remains to be the same. |
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y***g
发帖数: 54 | 23 申请AP， 让email a copy of your curriculum vitae (including a list of
publications and impact analysis)，请问去哪里找 publication的 impact
analysis？多谢 |
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y***g
发帖数: 54 | 24 申请AP, 要求email a copy of your curriculum vitae (including a list of
publications and impact analysis)。想问一下，去哪里找 publication的 impact
analysis？是不是就是引用次数，H-index？ |
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f******e
发帖数: 582 | 25 The director called to revise NSF budget by reducing 20%. One part is the "
budget impact statement". Does anyone have a sample for "budget impact
statement"? Thanks a lot. |
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c**********w
发帖数: 1746 | 26 we found an error with a high-impact journal paper. the "exciting finding"
is but a mathematical coincidence. Assuming we are right, can this be
published in that same high-impact journal? (PNAS) |
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n******i
发帖数: 598 | 27 My friend's company is looking for
FEA engineer, PhD, must know LS-DYNA in Impact Analysis, dynamic simulations
such as impact and crash analysis. It is better to know either ANSYS or
abaqus also. Must be graduate and can start working. Of course he said
experienced people is preferred.
Northwest area of houston.
If you are interested and fullfil the requirement, please reply and I can
give you his email to attach resume.
Feel free to forward to other 讨论区 |
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e********t
发帖数: 9607 | 28 只要能提供扭矩的就叫driver，比如转方向盘的司机。
impact driver在马达提供的扭矩不够的时候，会有一个锤子沿圆周切线方向敲击。因
为是瞬间冲击，能产生很大的瞬间力矩。就好像如果你转不动方向盘时，拿个锤子来沿
着转动方向锤击。
impact driver有两个指标，一个是最大扭矩，单位是英寸磅，这个是力量指标。18伏
的工具不是太差，这个数值都在1200以上，这个bosch是1500[1]应当是接近数值高端。
porter cable的是1600[2]。再高的我还没找到。
另一个是每分钟锤击次数，通常是2000以上，这个是速度指标。根据这个bosch的指标
，它的3200次锤击每分钟是同等产品中最高的。[1]
bosch还广告它的耐用性，据说从高处摔下来16次才坏，马奇他2次就坏了[3]。
价格上感觉高出这个牌子的价位，bosch牌子不如低洼和马奇他。
前一阵子90块钱的bosch组合的deal有人收到了么。
参考文献
[1]amazon.com
[2]portercable.com
[3]homedepot店内广告牌 |
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R**R
发帖数: 3318 | 29 Your mean the impact drill is hammer drill which is totally different from
impact driver.
can |
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G***G
发帖数: 16778 | 31 我有个很好奇的问题。你用impact wrench卸载没问题。
那么你用什么来拧紧呢？
还是用impact wrench来上紧吗？ |
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l*********8
发帖数: 1851 | 34 你是说impact driver还是drill/driver？
impact driver可以直接往墙上上螺丝，但是没有drill/driver好用 |
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p****g
发帖数: 1254 | 36 估计是那个contractor的impact drill/driver有力
我没有那个牌子，富户丁丁有一个makita的impact drill/driver（可能） |
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L**P
发帖数: 3792 | 37 没有啥impact drill吧?
不过只要能转的东西,比如impact driver,能套上钻头就能当drill用
好用不好用就不一定了,我怀疑主要是钻的洞的质量问题,但是钻个干墙没问题,反正不
在乎质量 |
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y***j
发帖数: 11235 | 38 Tyler Tool
$199.99 + FREE Shipping
Bosch 25618-02 18-Volt Cordless Litheon Impact Driver with SlimPack
Batteries
Rakuten.com
$199.99 + $7.99 shipping
Impact Driver Kit: Bosch 18-Volt Lithium-Ion 25618-02
Home Depot
$219.00 + FREE Shipping
Lowe's
$219.00
Toolbarns
$229.00$229.00 + FREE Shipping |
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m*f
发帖数: 3078 | 39 Reconditioned X4 Impact Driver Kit $49
bosch 18v impact/hammer drill $199 |
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h********o
发帖数: 3320 | 40 买组合。impact driver非常有用。等你用的多了，你就会发现那个impact driver比无
线drill给力多了 |
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h********o
发帖数: 3320 | 41 当你准备把一个超过三寸长的螺丝拧进木头里的时候，你就会发现用drill拧到一半的
时候怎么就拧不动了，然后你可能想还不如用个螺丝刀来拧，结果你会发现用手动螺丝
刀也拧不动。这时候就需要有impact driver，几下子就能把螺丝拧进去。 另外，
impact driver转速快，平时拧卸任何螺丝都比drill好用。用drill拧螺丝只有一种情
况下有优势，就是比如装类似宜家的家具，你可以把drill设置到低力量档， 这样不容
易把螺丝拧过。 |
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d****g
发帖数: 1542 | 42 看到了，impact driver更强大，drill/driver可用头多一些。
感觉我只要一个便宜的drill/driver就好了。
请问这个impact driver可以把钉进去的东西退出来吗？ |
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r********g
发帖数: 402 | 43 准备自己diy一个queen size的床。现在要买套工具，不知道是买个20v的drill就行还
是需要买个drill/impact combo?
木板选得是2in厚（实际是1.5in）的。如果用20v的drill先钻好洞，再往里拧螺丝的话
，还需要impact driver吗？
看到很多的品牌有20v跟20v max之分。这两种有什么区别？我该选哪一种？ |
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k***5
发帖数: 393 | 44 new home owner，打算在black friday进点工具，看到这些deals，请问哪个比较值得
买？
DeWalt 20V MAX Cordless Lithium Ion Drill Driver & Impact Driver Kit， $150
Crafsman C3 19.2V Drill & Impact Driver Combo Kit, $110
Ryobi 18-volt ONE+ Lithium-Ion Compact Drill/Driver Kit (这个不是两个是一个)
w/ Ryobi One+ 18-volt Cordless Reciprocating Saw， $100
另外问一下割草机应该买什么样的：corded, cordless or gas? 在德州，房子前院、
后院、侧边都要割草，不过加加起来大概就0.12 acre。 |
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k***5
发帖数: 393 | 45 谢谢各位的建议！最后买了roybi的drill和impact driver.
另外问一下drill & drive bits是不是要买impact quality的, 这个怎么看得出来? 好
像基本都没有特别标明。另外这些bits是不是各家通用? 买哪家的都行? |
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j******a
发帖数: 552 | 46 都可以用来钻孔和拧螺钉。 蛋...似...impact driver遇到阻力时有振动敲击功能，适
合柠紧或松动螺钉、螺母。 drill扭矩大，一直平滑转动。 所以drill多数用来钻孔
，impact drive多数拧螺钉。 |
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l****u
发帖数: 980 | 47 impact wrench是用于机械活的，修房用不上，修车很顶用。 |
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发帖数: 1 | 48 impact wrench 现在有电池驱动的。 功率可能稍微差点，偶尔需要用breaker bar先把
螺丝松开。
Snap-on
DeWalt
Milwaukee
Makita
Hilti |
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s******y
发帖数: 435 | 49 还要配锂电池和charger 120刀，这个unit $50，总共170刀，感觉还行
没用过，有熟悉impact driver的给点建议 |
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t**n
发帖数: 3962 | 50 WASHINGTON (MarketWatch) -- A new round of Federal Reserve purchases of
bonds would have little impact on markets or the economy, Minneapolis Fed
President Narayana Kocherlakota said in a speech on Wednesday. Speaking in
London, Kocherlakota on Wednesday outlined several reasons why buying
government bonds wouldn't make a major impact. For one, banks already have
nearly $1 trillion in excess reserves. "QE gives them new licenses to create
money, but I do not see why they would suddenly start to |
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