Lynch Metals Introduces Three-Layer Brazing Sheet
Introducing Lynch Metals new Multiclad product which is a three-layer product that offers several advantages over brazing sheet products consisting of only two layers. By adding an interlayer between the cladding and the core layers, multiclad has reduced the silicon penetration that occurs during brazing. The 3003 interlayer inhibits silicon from the cladding to diffuse into the core material. By eliminating this process, more molten braze material is available for fillet formation.
This product has proven to benefit our customers by reducing leak rates while allowing them to down gauge their product due to Multiclad's stronger heat treatable core. By using Multiclad to down gauge the parting sheet, the direct benefit is an overall reduction in the critical weight of the part.
As a direct result the following benefits occur:
1) Improved brazeability due to more braze material available.
Reduced risk of intergranular corrosion and silicon penetration.
2) Improved strength of the finished product, since AA6000 alloys can
be substituted for lower strength AA3000 alloys in the core material.
3) By using multiclad instead of a non-heat treatable alloy, you will
increase the yield strength by a factor of up to five. This will offer
the possibility of reducing metal thickness.
Lynch Metals, Inc. is dedicated to be the most versatile and complete stocking
distributor of aluminum brazing sheet and foil in the world. We focus on both
the aerospace and automotive heat transfer markets by specializing in custom
stocking programs for our customers.
We ship from our two stocking and processing centers, located in Union, NJ
and Anaheim, CA. By purchasing wide width coil, we offer complete flexibility
in processing material; either slitting, cut-to-length, shearing, or masking
to your specific requirements in house.
Hard to find brazing items are supplied in small quantities as low as five
pounds for prototype or research and development work.
Lynch Metals, Inc. stocks the most comprehensive inventory of coil and sheet products for manufactures of Heat Transfer products used in the aerospace markets. For smaller
heat transfer jobs that are dip brazed, we stock eight different gauges in both
21F and 22F alloy classification. Gauges in stock begin as low as .020" and as
heavy as .250" thick, and all are leveled to 36"/or 48" wide and 72" long.
Lynch Metals, Inc. has established itself as a specialty distributor of aluminum brazing products for the automotive industry.
By working closely with our mills metallurgical staff, we can provide our customers with the best technical support and analysis in the industry.
Our Products are used in a multitude of applications such as:
Charge air coolers: Internal turbulator fin and external fin
in both 3003 bare or clad two sides with
either 4004, 4104, or 4343. Header and side
support stock clad one or two sides with either
4004, 4104, 4343, or 4045 for vacuum or controlled atmosphere brazing.
Serpentine or parallel flow condensers: Alloy 3003 fin clad two sides with 4343 which is used in conjunction with extruded tubes. 3003 coiled strip for pierced and rolled manifolds or stamped headers in both 4045 or 4343 two side clad for controlled atmosphere brazing.
Evaporators: 3003 coiled strip clad two sides with 4343 as dimpled "plates" for controlled atmosphere brazing.
Bar & plate external oil coolers: 3003 bare fin stock. Clad parting sheet typically in 3003 clad two sides with either 4004 or 4104 for vacuum brazing.
Radiators: 3003 bare fin stock or clad two sides with 4343. Header and side support stock clad one or two sides with either 4045 of 4343 for controlled atmosphere brazing.
Preforms: 4045 or 4047 coiled brazing shim stock for washers, rings or wire applications.
Lynch Metal, Inc.'s experienced Customer Service Representatives will
assist you in the design stage of your custom shape. Our expertise in this
area will allow us to source your specific shape with the appropriate mill
that is best suited to produce it. We Will manage your inventory on our
floor to insure a consistent flow of material during all market conditions.
o Terms are net 30 days.
o AS9100/ISO9001:2000 Certified
o Fabrication services available, include, but not limited to
punching, mitre cutting, bending , deburring, and CNC
machining.
Technical Services
Brazing is often referred to as a "Black Art" since there are so many variables occurring during each step of the process. Technical and metallurgical support is readily available from our supplier. We have a complete staff of metallurgists and product engineers that will answer any questions you may have concerning brazing. Samples of brazed joints are quickly analyzed on the most sophisticated equipment within hours after receipt. Full metallurgical reports complete with scanning electromicroscopic pictures of your sample are returned to you with recommendations on how to solve problems
