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Metalworking (rec.crafts.metalworking) Discuss various aspects of working with metal, such as machining, welding, metal joining, screwing, casting, hardening/tempering, blacksmithing/forging, spinning and hammer work, sheet metal work. |
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#1
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$18,367 manual hydraulic pump???
The cost of so much of the items in Mil spec or NASA spec - is simply
testing, testing, testing. Documentation to kazoo and keep it for as long as the item is in use. - That might be 50 years. Oh - and the instruments that tested the device must be kept in the archives for that time. I've had to stand up for issues of parts and assemblies that were old. Got through it with a 'white' paper detailing everything possible. The issue wasn't with our part - it was how it was used. It was in a container that was cooled with LNO2. The Coolant was intended to flow over the part that this part was connected to. Our part in the box - theirs not. LN02 coolant filled the box as a gas - chilled it - created ice where it could and melted ice (water) where the heat content was greater. Nothing like having several hundred amps of -2V and a lesser amount of other voltages - all of the power buses under water - the switchers supplying the extra current. What tripped it up was a data bus was also shorted and that tripped the computer. That was a black project - and really hard to work with. It was guide by phone. The security was such that the front door was locked - no entry into a lobby without a special badge. Even if you are saving their butt! We simply suspected the former - had the box rotated slightly - water on the floor red faces on the internal workers - a lot of xxxxx and more 'white paper writing'. Just a few reasons why stuff is more expensive - Martin Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH & Endowment Member NRA Second Amendment Task Force Charter Founder Ignoramus14487 wrote: I am talking about items pictured he http://cgi.govliquidation.com/auction/view?id=783171 Each of these pumps cost the military $18,367 (click on the link 4320007560600). Surely, they can develop 20,000 PSI and seem sturdily made, but still, I wonder. I saw manual pumps at Grainger that developed 10,000 PSI and cost only $960 or so. Why would these ones be 20 times more expensive? Are they made of some very expensive materials? Or do they require some unusual precision? (yes, I am the winner of this auction, but have not yet picked them up). I also have a related question. I have this hydraulic ram and no one seems to want it that much. I tried to sell with not much success. http://yabe.algebra.com/~ichudov/mis...ulic-Cylinder/ Can I use this ram with one of those manual pumps. At 20,000 PSI, the ram would develop approximately 24,500 lbs of pressure (if it can withstand it). That would make for a nice 10 ton press or log splitter. The question is, is 20,000 psi too much for cylinders like this? (I do not have a nameplate) i ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#2
Posted to rec.crafts.metalworking
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$18,367 manual hydraulic pump???
This story might be interesting if even parts of it made sense.
Martin H. Eastburn wrote: The cost of so much of the items in Mil spec or NASA spec - is simply testing, testing, testing. Documentation to kazoo and keep it for as long as the item is in use. - That might be 50 years. Oh - and the instruments that tested the device must be kept in the archives for that time. I've had to stand up for issues of parts and assemblies that were old. Got through it with a 'white' paper detailing everything possible. The issue wasn't with our part - it was how it was used. It was in a container that was cooled with LNO2. The Coolant was intended to flow over the part that this part was connected to. Our part in the box - theirs not. LN02 coolant filled the box as a gas - chilled it - created ice where it could and melted ice (water) where the heat content was greater. Nothing like having several hundred amps of -2V and a lesser amount of other voltages - all of the power buses under water - the switchers supplying the extra current. What tripped it up was a data bus was also shorted and that tripped the computer. That was a black project - and really hard to work with. It was guide by phone. The security was such that the front door was locked - no entry into a lobby without a special badge. Even if you are saving their butt! We simply suspected the former - had the box rotated slightly - water on the floor red faces on the internal workers - a lot of xxxxx and more 'white paper writing'. Just a few reasons why stuff is more expensive - Martin Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH & Endowment Member NRA Second Amendment Task Force Charter Founder Ignoramus14487 wrote: I am talking about items pictured he http://cgi.govliquidation.com/auction/view?id=783171 Each of these pumps cost the military $18,367 (click on the link 4320007560600). Surely, they can develop 20,000 PSI and seem sturdily made, but still, I wonder. I saw manual pumps at Grainger that developed 10,000 PSI and cost only $960 or so. Why would these ones be 20 times more expensive? Are they made of some very expensive materials? Or do they require some unusual precision? (yes, I am the winner of this auction, but have not yet picked them up). I also have a related question. I have this hydraulic ram and no one seems to want it that much. I tried to sell with not much success. http://yabe.algebra.com/~ichudov/mis...ulic-Cylinder/ Can I use this ram with one of those manual pumps. At 20,000 PSI, the ram would develop approximately 24,500 lbs of pressure (if it can withstand it). That would make for a nice 10 ton press or log splitter. The question is, is 20,000 psi too much for cylinders like this? (I do not have a nameplate) i ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- |
#3
Posted to rec.crafts.metalworking
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$18,367 manual hydraulic pump???
On Sat, 18 Feb 2006 06:02:49 +0000 (UTC), Cydrome Leader
wrote: This story might be interesting if even parts of it made sense. Actually..it made perfect sense. Gunner Martin H. Eastburn wrote: The cost of so much of the items in Mil spec or NASA spec - is simply testing, testing, testing. Documentation to kazoo and keep it for as long as the item is in use. - That might be 50 years. Oh - and the instruments that tested the device must be kept in the archives for that time. I've had to stand up for issues of parts and assemblies that were old. Got through it with a 'white' paper detailing everything possible. The issue wasn't with our part - it was how it was used. It was in a container that was cooled with LNO2. The Coolant was intended to flow over the part that this part was connected to. Our part in the box - theirs not. LN02 coolant filled the box as a gas - chilled it - created ice where it could and melted ice (water) where the heat content was greater. Nothing like having several hundred amps of -2V and a lesser amount of other voltages - all of the power buses under water - the switchers supplying the extra current. What tripped it up was a data bus was also shorted and that tripped the computer. That was a black project - and really hard to work with. It was guide by phone. The security was such that the front door was locked - no entry into a lobby without a special badge. Even if you are saving their butt! We simply suspected the former - had the box rotated slightly - water on the floor red faces on the internal workers - a lot of xxxxx and more 'white paper writing'. Just a few reasons why stuff is more expensive - Martin Martin Eastburn @ home at Lions' Lair with our computer lionslair at consolidated dot net NRA LOH & Endowment Member NRA Second Amendment Task Force Charter Founder Ignoramus14487 wrote: I am talking about items pictured he http://cgi.govliquidation.com/auction/view?id=783171 Each of these pumps cost the military $18,367 (click on the link 4320007560600). Surely, they can develop 20,000 PSI and seem sturdily made, but still, I wonder. I saw manual pumps at Grainger that developed 10,000 PSI and cost only $960 or so. Why would these ones be 20 times more expensive? Are they made of some very expensive materials? Or do they require some unusual precision? (yes, I am the winner of this auction, but have not yet picked them up). I also have a related question. I have this hydraulic ram and no one seems to want it that much. I tried to sell with not much success. http://yabe.algebra.com/~ichudov/mis...ulic-Cylinder/ Can I use this ram with one of those manual pumps. At 20,000 PSI, the ram would develop approximately 24,500 lbs of pressure (if it can withstand it). That would make for a nice 10 ton press or log splitter. The question is, is 20,000 psi too much for cylinders like this? (I do not have a nameplate) i ----== Posted via Newsfeeds.Com - Unlimited-Unrestricted-Secure Usenet News==---- http://www.newsfeeds.com The #1 Newsgroup Service in the World! 120,000+ Newsgroups ----= East and West-Coast Server Farms - Total Privacy via Encryption =---- "A prudent man foresees the difficulties ahead and prepares for them; the simpleton goes blindly on and suffers the consequences." - Proverbs 22:3 |
#4
Posted to rec.crafts.metalworking
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$18,367 manual hydraulic pump???
On Sat, 18 Feb 2006 06:02:49 +0000 (UTC), Cydrome Leader
wrote: This story might be interesting if even parts of it made sense. Can't keep up??? Sit on the bench. Brian Lawson, Bothwell, Ontario. |
#5
Posted to rec.crafts.metalworking
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$18,367 manual hydraulic pump???
Okay, so I'm late and catching up, but Gunner
wrote on Sat, 18 Feb 2006 17:59:33 GMT in rec.crafts.metalworking : On Sat, 18 Feb 2006 06:02:49 +0000 (UTC), Cydrome Leader wrote: This story might be interesting if even parts of it made sense. Actually..it made perfect sense. I make parts for airplanes. Even the "trivial" parts have paperwork: hardness, heat lot, in process inspection, CMM inspection when made, and all this is documented. And you have to get a first part inspected and "bought off" before you can complete the operation. Milling, Deburr, assembly, all of them have that 'first part buy off'. Oh, and any thing you write on the paperwork can be in any shade of ink, as long as it is black. Hey, sounds good to me. I get paid either way... pyotr -- pyotr filipivich. as an explaination for the decline in the US's tech edge, James Niccol wrote "It used to be that the USA was pretty good at producing stuff teenaged boys could lose a finger or two playing with." |
#6
Posted to rec.crafts.metalworking
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$18,367 manual hydraulic pump???
Brian Lawson wrote:
On Sat, 18 Feb 2006 06:02:49 +0000 (UTC), Cydrome Leader wrote: This story might be interesting if even parts of it made sense. Can't keep up??? Sit on the bench. I'm not a translator, so I guess I cannot keep up. Brian Lawson, Bothwell, Ontario. |
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