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About Rubber Metal Bonding and Rubber Metal Bonding
Services
Rubber metal bonding refers to processes through which
rubber is adhered to a metal substrate. The metal gives the rubber enough
stiffness so the part can be mounted. Rubber provides the metal with
elasticity and damping properties. The rubber can be either adhered or
molded to a metal piece. Before the molding takes place, the metal is
prepared by degreasing, sandblasting or
shot blasting in order to completely free the surface from rust and other
impurities. A bonding agent is then sprayed onto the piece of metal.
After drying, the rubber is placed into the mold for forming and curing.
In the rubber metal bonding process there are three essential elements: rubber,
the bonding agents and the substrate. Any type of rubber can be used, providing
that the material can flow into the mold without developing a significant level
of cross-linking and that the substances making up the rubber material will not
bleed rapidly to the surface of the uncured stock. The bonding agents consist
of polymer/solvent solutions, with a primer coat based on phenolic-style resins
and a topcoat of polymers and other materials. Most of these solutions are patented.
The thickness of the bonding layer depends on the nature of the rubber formulation.
The application of the bonding agents typically requires the spraying of a gray
primer coat over a slightly wider area than the black topcoat, using a barrel
spraying machine. The substrate used in rubber metal bonding services depends
on the necessary strength and durability requirements of the application.
The science behind the rubber metal bonding process is varied and complex. Often
the type of polymer (rubber) chosen depends on what type of metal is to be used
and/or the part being manufactured. Determining the appropriate bonding agent
is critical. The selection process depends on the rubber to be used, the component
design and the elasticity of the rubber. The traditional metal used in rubber
metal bonding services is steel in all its forms and grades, but increasing use
is made of aluminum alloys and polyamides to save weight. Almost any material
can be bonded to rubber, provided that it can withstand the heat and pressures
of the rubber
molding process. However, the results of bonding rubber to alloys, such as
bronze and brass, greatly depend on the composition of the alloys.
The pieces made by rubber metal bonding services are used in various areas of
the industrial, commercial and medical fields. Many of the components are used
for the isolation of vibration and
noise in manufacturing applications. The motor vehicle industry in particular
uses a large number of bonded rubber to metal parts. The steering wheel is joined
to the steering column by various rubber bonded parts. Foot pedals and bumpers
are examples of common items that have rubber/metal characteristics. Because
of the wide variety of parts used today consisting of bonded rubber to metal,
most of the shops that specialize in the manufacturing of these parts are custom
shops that work with customers from the design level through production.
Featured
Articles
http://www.azom.com/details.asp?ArticleID=917
http://www.sartomer.com/TechLit/5530.pdf
Types of Rubber to Metal Bonding
- is a process that requires adhering or molding the rubber to sandblasted metal.
-
is a method in which an agent is applied to the surface of the lining
and allowed to permeate the lining over several days at room temperature.
The chemical curing process thatcan be accelerated by the application
of heat, is commonly used on tank repairs or large field lined vessels.
-
is a method in which the vessel is blanked off with blind flanges or
tarped with live steam being bled into it. The exhaust steam method
maintains the lining integrity and bond and is often used on field lined
tanks that are too large to transport.
- are
pieces or rings of rubber or metal placed at a joint to make it leakproof.
Gaskets are a type
of seal made often with bonded to metal rubber.
-
provides reliable, repeatable, non-contact and energy-efficient heating
in a minimal amount of time to very small areas within precise production
tolerances without disturbing individual metallurgical characteristics.
The closed-loop control of induction heating produces repeatable, rapid
and accurate heating cycles, making it ideal for in-line production
processes.
- are
made of rubber or silicone and seal rotating or sliding shafts. O-rings,
often made with a rubber coating on metal, are used in applications
such as shock absorbers and differentials.
- is sometimes
bonded with rubber when the pipe line is required to be more insulated
and vibration absorbent.
-
is a non-heat or chemical way of bonding rubber to metal that involves
the bonding of a preformed rubber piece onto a piece of metal via a
predetermined groove or space and a mild adhesive agent.
- gives the metal material elasticity and dampening abilities.
- is a manufacturing process that adheres rubber to various materials in order to give the material elastic qualities.
-
are common devices made by the bonding of rubber to metal. Rubber grommets
are used in the screen press process, in the hoisting of a flag and
other applications in which an eyelet is needed for passing a line through.
- are those goods made from natural and synthetic rubbers materials.
-
(http://www.rubber-rolls.com)
are used to squeeze the water out of pulp in the manufacturing of paper.
The roll has a metal core, but to perform efficiently, the core is lined
with rubber.
- are common
types of products made with rubber bonding technology. Seals
are often used as shut off pieces in hydraulic equipment.
-
is a rubber to metal bonding method in which a rubber lined metal article
is placed in a live steam vulcanizer and cured under pressure. The vulcanizer
method results in the highest rubber to metal adhesion and yields the
highest density for corrosive media.
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