Flexible Campaign Melting Paving the Way for Specialty Glass

SCHOTT AG - Glass Tubing

Specialty glass production has been on the rise, given the new demands that are emerging through modern technology. With niche markets requiring a sustainable supply of customised, high-quality glass, it is rather essential to develop the right solutions and upgrade conventional glass production processes in order to fulfil those requirements in a time- and cost-effective manner. One solution called “flexible campaign melting” has been introduced by SCHOTT Tubing, which allows for on-demand production of specialty glass. So, what is specialty glass? And how does flexible campaign melting help niche markets?

DURAN from SCHOTT.jpg

Figure 1. The different dimensions of DURAN® glass tubing from SCHOTT AG.

 

Glass production, in general, is a process that involves the sequential steps of mixing raw materials and melting them at high temperatures to reach a fused state, after which they were drawn or floated to form the desired end products. However, in many cases, the production of certain glass products has been significantly reduced and sometimes even brought to an end due to a major drop in demand with the rise of alternative products.

One example is the lighting industry, which had utilized Barium glass as the standard material for their lamp housings until LEDs were introduced. As a result, such glass housings were not sought-after anymore, and the production process has been mostly discontinued. This halt has created problems for other smaller industries that utilise the same kind of glass, just as the producers of pH electrodes, for instance. As a niche market, their need for relatively small quantities of barium glass is not sufficient for a possible resumption of the fully continuous production process. In addition, they do not have a practical option to substitute it with an alternative material due to the tight requirements they have in terms of glass properties. Such an issue urges for new solutions that can provide the required material without the need for a large-scale production process, and thus, can minimize the relative time and cost.

What is specialty glass?

Specialty glass denotes the various types of glass products that take place in manufacturing and further processing. They are distinct from standard glass through enhanced material properties that are particularly tailored for the material to operate in diverse conditions. For instance, many types of specialty glass exhibit exceptional chemical durability, which allows them to operate properly in corrosive environments or under extreme conditions. Such types of specialty glass include borosilicate glass, aluminosilicate glass, and Kovar sealing glass.

One example of specialty glass is DURAN® tubing from SCHOTT Tubing, which is a heat resistant material that is able to withstand corrosive gases. This borosilicate glass material also has a high resistance to thermal shocks and is a strong electrical insulator, which allows it to be used in various application areas, including heat exchangers, fuses, x-ray tubes, and safety lighting, to name a few. Other similar materials include DUROBAX® amber, which is known for its hydrolytic resistance and light protection both in the visible and ultraviolet (UV) range, aluminosilicate glass 8252, which is useful under extremely high temperatures, and Kovar glass 8250, which allows for impermeable sealing to Kovar alloy.

Nonetheless, for such specialty glass materials to be sufficiently produced, particularly for the niche sections of the industry, certain improvements to the production processes are needed. One viable solution offered by SCHOTT Tubing takes place in the melting stage of the production process, and it is appropriately called flexible campaign melting.

Flexible campaign melting

The value of flexible campaign melting lies in its sustainable on-demand supply of the desired specialty glass that, as Dr. Andre Petershans – Product Manager for SCHOTT specialty tubing -  explains, “would otherwise be impossible or no longer exist – despite being wanted, even needed, in their mature markets.” Flexible campaign melting is a solution that allows for the simultaneous combination of needs of multiple customers, as a particular glass material is melted on demand for one customer while considering the nearest following melt. This approach not only provides the necessary materials for the customers, but it also brings about great adaptability and versatility in a conventionally inflexible continuous production process.

Solutions as such are game-changers when it comes to the many facets of specialty glass supply. Knowing that glass melting is nothing shy of a complex, painstaking, costly process, supplying niche markets that have relatively low volume needs can be quite challenging. That is why the ability to reach the minimum volume for a melting campaign could prove very effective, and that is what SCHOTT Tubing are offering with flexible campaign melting.

SCHOTT Tubing is a leading manufacturer of glass tubes, rods, and profiles, with a material portfolio of seventy different types of specialty glass, each with its unique and effective material properties. Such a variety allows for the customisation of different products with an assortment of diameters and lengths based on corresponding strategies in production and quality assurance. They have listed their materials here on Matmatch to ensure that engineers, researchers, and product developers can easily find their desired materials and reach out to them directly.

Visit the SCHOTT Tubing supplier page for more information on their materials and to get in direct contact with them.

Depositphotos_5646512_xl-2015.jpg

Figure 2. Flexible campaign melting allows for on-demand specialty glass.

Article by SCHOTT AG - Glass Tubing

SCHOTT is a leading international technology group in the areas of specialty glass and glass-ceramics. The company has more than 130 years of outstanding development, materials and technology expertise and offers a broad portfolio of high-quality products and intelligent solutions. SCHOTT is an innovative enabler for many industries, including the home appliance, pharma, electronics, optics, life sciences, automotive and aviation industries. SCHOTT strives to play an important part of everyone’s life and is committed to innovation and sustainable success. The parent company, SCHOTT AG, has its headquarters in Mainz (Germany) and is solely owned by the Carl Zeiss Foundation. As a foundation company, SCHOTT assumes special responsibility for its employees, society and the environment.

With a production capacity of more than 150,000 tons of glass tubing and production sites in Europe, South America and Asia, SCHOTT Tubing is one of the world’s leading manufacturers of glass tubes, rods and profiles. Approximately 60 glass types are produced in several outside diameters and in a variety of lengths based on site-overlapping strategies in development, production and quality assurance. SCHOTT Tubing provides customized products and services for international growth markets such as pharmaceuticals and electronics as well as industrial and environmental engineering.

Send a question to

SCHOTT AG - Glass Tubing

Applications

General Fire Protection

Pollution Control Equipment

Pollution Control Equipment General

Fluid Systems

Fluid Storage

Fluid Storage General

Vessels

Mobile Vessels

Pressure Vessels

Pipelines

Water Pipelines

Flanges

Couplings & Joints

Other Pipeline Components

Water Treatment

Manufacturing

Chipless Working Equipment

Moulds

Hand-Held Tools

Pneumatic Tools

Industrial Furnaces

Electric Furnaces

Energy

Burners & Boilers

Boilers & Heat Exchangers

Heat Exchangers In Energy

Chemical Industry

Equipment For Chemical Industry

Heat Exchangers

Solar Energy

Solar Thermal

Electrical Engineering

Electrical Insulation

Glass & Ceramic Insulation

Semiconductor Industry

Insulation

Insulators

Electrical Accessories

Fuses & Ocp

Lamps & Related Equipment

Lamps

Luminaires

Lighting Installation Systems

Rotating Machinery

Generators

Batteries

Other Cells & Batteries

Electronics

Electronic Components

Sensors

Electronic Tubes

Packaging

Containers

Tubes

Laser Equipment

Lasers

Communications

Fibre Optics

Fibre Optic Connector

Other Fibre Optic Equipment

Radar

Construction

Lighting

Material Handling

Continuous Handling

Conveyors

Pneumatic Transport

Food Packaging

Packaging Material

Bottles & Jars

Distribution & Vending Machines

Textile Industry

Textile Auxiliary Materials

Agriculture

Farm Buildings

Horticulture

Food Industry

Food Industry Containers

Food Industry Equipment

Chemical Industry Production

Analytical Chemistry

Laboratory Equipment

Laboratory Ware

Chemical Analysis

Equipment For The Chemical Industry In General

Reaction Vessels

Reaction Columns

Oil & Gas Industry

Equipment For Petroleum & Natural Gas Industry

Equipment For Petroleum & Natural Gas Industries In General

Volumetric Equipment

Glass & Ceramics

Glass

Glass In Building

Glass Products

Glass In Industrial Applications

Gauge Glasses

Building Elements

Elements Of Buildings In General

Walls

Partitions

Facades

Installations In Buildings

Plumbing

Water Heating

Drainage Systems

Lighting In General

Interior Lighting

Exterior Building Lighting

Consumer Goods

Decorative Applications

Furniture

Domestic

Commercial & Industrial Heating Appliances

Electric Heaters

Shop Fittings

Shop Fittings In General

Cosmetics

Metrology

Non-Destructive Testing

Signal Intensifier

Optoelectronics

Optoelectronics General

Automotive

Road Vehicle Systems

Car Lighting

Semiconductor Devices

Diodes

Optics & Imaging

Photography

Photo Equipment & Projectors

Camera Parts

Cinematography

Show all