X-Virus-Scanned: clean according to Sophos on Logan.com Return-Path: Received: from ms-smtp-05.southeast.rr.com ([24.25.9.104] verified) by logan.com (CommuniGate Pro SMTP 5.1.10) with ESMTP id 2149652 for flyrotary@lancaironline.net; Sat, 30 Jun 2007 08:14:21 -0400 Received-SPF: pass receiver=logan.com; client-ip=24.25.9.104; envelope-from=eanderson@carolina.rr.com Received: from edward2 (cpe-024-074-103-061.carolina.res.rr.com [24.74.103.61]) by ms-smtp-05.southeast.rr.com (8.13.6/8.13.6) with SMTP id l5UCDUAa028327 for ; Sat, 30 Jun 2007 08:13:31 -0400 (EDT) Message-ID: <000c01c7bb10$0ff84c30$2402a8c0@edward2> From: "Ed Anderson" To: "Rotary motors in aircraft" References: Subject: Re: [FlyRotary] Re: PP Construction...Ed's comments requested :) Date: Sat, 30 Jun 2007 08:13:26 -0400 MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="----=_NextPart_000_0009_01C7BAEE.889A60F0" X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 6.00.2900.3028 X-MIMEOLE: Produced By Microsoft MimeOLE V6.00.2900.3028 X-Virus-Scanned: Symantec AntiVirus Scan Engine This is a multi-part message in MIME format. ------=_NextPart_000_0009_01C7BAEE.889A60F0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable Hi Marv, Yes, Having used that H2000 to braze thin wall (0.049) aluminum tubing = to the stock intake manifold aluminum casting, I am not surprised. As = you said that aluminum really likes to wick heat away from the spot = you're trying to braze. I was initially unsuccessful because I was = using too small a BTU torch, but once I switch to a high BTU output = torch, it worked fine. Yes, I never had any luck using aluminum brazing rods until I found the = H2000. I must have 5 lbs of various aluminum brazing rod laying around = that I could never get to work. Most of the time when they melted the = aluminum would just sizzle around on the material like a drop of water = on a hot skillet, but the H2000 is a different stuff. Ed ----- Original Message -----=20 From: marv@lancair.net=20 To: Rotary motors in aircraft=20 Sent: Friday, June 29, 2007 11:30 PM Subject: [FlyRotary] Re: PP Construction...Ed's comments requested :) I recently had to fill a 1"ID hole in a 2" dia x 12" long aluminum bar = with a solid 1" rod about 2" long. I couldn't get the parts up to temp = with propane so I swtiched to the oxy/acetylene tanks and it made all = the difference in the world. The aluminum mass really likes to sink = away the heat almost as fast as you apply it, so you really need to play = the flame over a large area to get the target up to temp. Once the = parts got where they needed to be the H2000 worked a charm, wicked into = the joint just like sweating copper pipe. It's pretty amazing stuff. ------=_NextPart_000_0009_01C7BAEE.889A60F0 Content-Type: text/html; charset="iso-8859-1" Content-Transfer-Encoding: quoted-printable
Hi Marv,
 
Yes, Having used that H2000 to braze thin wall = (0.049)=20 aluminum tubing to the stock intake manifold aluminum casting, I am not=20 surprised.  As you said that aluminum really likes to wick heat = away from=20 the spot you're trying to braze.  I was initially unsuccessful = because I=20 was using too small a BTU torch, but once I switch to a high BTU output = torch,=20 it worked fine.
 
Yes, I never had any luck using aluminum brazing = rods=20 until I found the H2000.  I must have 5 lbs of various aluminum = brazing rod=20 laying around that I could never get to work.  Most of the time = when they=20 melted the aluminum would just sizzle around on the material like a drop = of=20 water on a hot skillet, but the H2000 is a different stuff.
 
Ed
----- Original Message -----
From:=20 marv@lancair.net=20
Sent: Friday, June 29, 2007 = 11:30=20 PM
Subject: [FlyRotary] Re: PP=20 Construction...Ed's comments requested :)

I recently had to fill = a 1"ID=20 hole in a 2" dia x 12" long aluminum bar with a solid 1" rod about 2"=20 long.  I couldn't get the parts up to temp with  propane so = I=20 swtiched to the oxy/acetylene tanks and it made all the difference in = the=20 world.  The aluminum mass really likes to sink away the heat = almost as=20 fast as you apply it, so you really need to play the flame over a = large area=20 to get the target up to temp.  Once the parts got where they = needed to be=20 the H2000 worked a charm, wicked into the joint just like sweating = copper=20 pipe.  It's pretty amazing=20 stuff.

 
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