Hello from the technical sales department of the Multi-Lab Group Ltd,
Following on from our Hannover Messe blog of the 15th, I am very pleased to say that we have secured our first two orders and are swamped with inquiries, so we can very safely hail the show as a great success.
We would also like to congratulate Mr Laurie Hoskisson at Multi-Lab QuartzTec Ltd who has just taken control of the Thermocouple shop & the Q A department, both of which will be integrated into his role as head of manufacturing & production …………
MACOR MGC Machinable Glass Ceramic
This years Hannover Messe Ceramic sector Hall 6 saw Corning’s Macor MGC ( probably the worlds most prolific machinable ceramic) represented solely by Multi-Lab, which was very good for us and has led to some very interesting inquiries, we have also been able to offer some of these companies other technical ceramic materials, such as BNP 2 machinable aluminium nitride ………….
MACOR® is melted and cast using conventional glass making techniques. It is a fluorine rich glass with a composition approaching trisilicic fluorphlogopite mica (KMg3AlSi3O10F2). Upon cooling from the melt, the glass spontaneously phase separates into fluorine rich droplets. The resulting glass has the appearance of an opal glass. Subsequent controlled heat treatment devitrifies the fluorine rich droplets causing a series of morphological changes ultimately resulting in the formation of randomly oriented, interlocked, sheet-like fluorphlogopite mica crystals within the alumino-borosilicate glass matrix. The volume percent crystalline phase after heat treatment is approximately 55% with a mean crystal size of 20 microns. It is this uniform distribution of randomly oriented mica within the parent glass that gives rise to the unique characteristics of MACOR®.
With excellent physical properties coupled with high dielectric strength, and excellent electrical resistivity, MACOR has zero porosity, with the ability ti maintain excellent tolerance control when machining and when polished correctly, can achieve the following A 0.5μin.-AA finish, by the following process ……………………
Start with loose 400-grit silicon carbide on a steel wheel. For the final polish, use cerium oxide or alumina on a polishing pad for glass or ceramics.
Macor can be easily machined with standard tungsten carbide tooling / cutters or ground with diamond tooling, both methods work far better when flooded with coolant.
As a result, MACOR is an outstanding material which can quickly be designed into complex shapes & is dimensionally stable.
Macor is of course only one of very many technical ceramics on offer from the Multi-Lab Group, not forgetting of course, Fused Silica / Quartz where our immense activities in this field make the brand Multi-Lab the globally recognised name that it is today…………………..
The Multi-Lab Groups global activities over the past 30 years have ensured that our brand / logo ………………
is recognised worldwide within our very vast & diverse business sectors / markets.
The Multi-Lab group would like to take this opportunity to wish you all far & wide a very enjoyable bank holiday weekend, and we will be back here in the office and open for business as usual on the morning of Tuesday 27th May.