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L’ancien dirigeant de la miroiterie Schultz président de la CPME 53

 

 

Raphaël Alexandre a été désigné président de la CPME 53, la confédération des petites et moyennes entreprises de la Mayenne, jeudi 9 janvier 2020. Ce n’est pas son premier mandat au sein de l’institution : il a déjà occupé les postes de vice-président à l’industrie et à l’artisanat.

Directeur de la miroiterie Schultz à Saint-Berthevin jusqu’en 2016, Raphaël Alexandre a créé en 2018 l’agence Cheval et Patrimoine spécialisée dans le tourisme équestre. « Nos adhérents se composent essentiellement d’artisans qui travaillent seuls, rappelle le nouveau président. Notre mission reste de les aider au quotidien. »

 

Acquisition of a mirror factory by Cevino glass in the Lyon region

 

The mirror of the North of France which has been operating since 2012 from the Dubrulle and Kap Glass mirrors has just bought the mirror of Ponchara, Tecni bombage from its manager Jean Mas. Tecni bombage is one of the major French players in the field of curved glass with around fifty employees and a turnover of around 8 million euros.

Cevino glass which bought in 2018 the mirror maker Nealtis operating in the Paris region now has 14 production sites in France

100 years for the Charles Costa mirror shop

 

 

 

For 100 years, each of the 4 generations has seen their father invest in the Charles Costa business, without counting his time, deploying a lot of effort and always with passion

 

We are happy to celebrate this year the extraordinary anniversary of our centenary.

 

Be sure that the satisfaction of our customers will always remain at the heart of our priorities as well as the respect of commitments with our partners.

 

I join with all my colleagues in presenting to you our best wishes for health, success and serenity for this new year 2020.

 

 

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Sarthe. L’entreprise Grav’Or ce week-end à l’Élysée

L’entreprise mancelle de gravure sur verre, fait partie des 100 entreprises sélectionnées pour l’exposition « Fabriqué en France » qui se déroule les 18 et 19 janvier 2020 à l’Elysée.

Les samedi 18 et dimanche 19 janvier 2020, 100 entreprises françaises – sélectionnées parmi 1 750 dossiers – présenteront le savoir-faire « Fabriqué en France » de 100 départements français, à l’Élysée. L’entreprise mancelle Grav’Or a été retenue pour représenter la Sarthe.

Nommée aux Talents de la Sarthe 2018 dans la catégorie « entreprise », la société de miroiterie et décoration sur verre présentera ce week-end un paravent avec gravure à la main, feuille d’or et laquage en églomisé précise le site de l’Élysée.

 

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Tools and wheels for glass processing

 

The tools, mainly the wheels are very important to have a good machine working ( quality, productivity, speed..).

They are several different wheels for differents using and goals

1/Diamond wheels

This wheel must remove the glass to reach the final dimension required and give good surface conditions to prepare the polishing.

There are 2 diiferent types:

-The cup wheels ( wheels with a bowl shape) working with the top flat part

Cup diamond wheels from Lanzetta.

-The peripheral wheels working with the throat

Peripheral wheels from Bavelloni.

With cup wheels you can only obtain flat edge with arises. With peripheral wheels you can obtain all kind of edges, the shape of the throat wheels giving the shape for the glass edge.

There are segmented wheels to process laminating glass or when an important removal is required and wheels with continuous crown in other cases

 

The efficient part of the wheels is a bond where are located the diamond pieces (artificial diamond) which are able to remove glass. When a wheel needs to remove important glass quantities (from 0.2 mm up to 5 mm) a metallic bond is the best solution. To remove small glass quantities (and clean the surface after diamond wheels with metallic bonds) a bakelite bond is the right choice (from 0.01 mm and more up to 0.2 mm). These bonds are mainly used on beveling machines where the quality of the glass surface before polishing with felt and cerium oxide is very important.

Industrial diamond

A bakelite wheels is always a diamond wheels.

For the diamond the main parameters are the geometry, the grit size and the concentration inside the bond.

The secret to manufacture good diamond wheel is the right balance between the bond and the diamond parameters.

-Polishing wheels for glass and stone processing.

With these wheels you need to:

-remove from the glass surface or edge the lines let by the diamond wheels.

-polish the glass surface or edge to have a beautiful appearance

Polishing wheels from Italmole

The polishing wheels are also constituted with a bond and an abrasive material (generally aluminium oxide). The references for the grit size start with 40 (coarse grit size) and go up to 180 (very fine grit size) for the more important market suppliers.

 

-Stone wheels

There are wheels which have to remove a minimum glass quantity (in case of seams for example, or with the CNC machines) and to give in the same time a good polishing. They are done with synthetic stone.

Stone wheels from Italmole

-White wheels or Cerium wheels

These wheels are not able to remove glass but only to give a bright polishing to the glass surface or edge.

Cerium wheels from Italmole