Trouble with maintaining the profile?
Kinks on the inside of the bend? Lost concentricity?
Deformed annular gap?

No such problems with MCP fusible alloys…
Sections, plain or complex - walls, thick or thin.
Any metal ductile enough for bending, and using
conventional bending equipment and tooling.

The MCP low melting-point alloys recommended
for tube and section bending have casting and mechanical
properties specially suited to the optical industry.


MCP Quality

The alloys are produced from high-grade constituents, following strict specifications. Quality is monitored by an accredited system conforming to ISO 9002.


Workpiece Support Features

The recommended MCP low melting-point alloys have mechanical properties that are unusually well suited to the task of support during bending. It is possible to maintain a constant cross-section during the process, which may be used successfully on sections at least as large as 120mm square.

It is also possible to preserve a uniform annular gap while avoiding wrinkling in bending concentric tubes, for which purpose the alloy replaces sand, shot or ice as the filler. The low melting-points ensure that the profile, tube or section is neither damaged nor distorted during filling and melt-out.


Stability & Durability

With proper attention to usage, the MCP low melting-point alloys can be re-used continually over periods extending into years. If the composition is found to have drifted away from the original specification, it can usually be corrected in-house by the user. For this purpose, a testing service is available at the Wellingborough production laboratory. The corrective amounts of constituents can be supplied as a specially formulated alloy.


Choice of Alloy

Alloy
Designation
Melting
Point
Indications For Use
MCP 70
70-75°C
158-167°F
Needs immediate quenching after the filling. The low melting-point allows use of hot water for melting out.
MCP 79
79°C / 174°F
As MCP 70, but lead- and cadmium-free.
MCP 124
124°C / 255°F
Suitable for larger sections. Requires no quenching, but the higher melt-out temperature means that an oil or other high boiling-point fluid is needed.


Equipment
A range of MCP melting pots and tanks with volumes up to 15 litres is available from stock. For your specific purpose, MCP can also design and supply equipment for melting, dispensing and recovery, able to cope with low volume, high precision work (e.g. wave guides) and large section, high volume, precision bending (such as aluminium structural profiles).

Safety & The Environment
The recommended alloys are not classified as 'dangerous' for either carriage or supply. They are easy to handle, and quite safe when the rules for normal handling are observed.