BASF Corporation

46820 Freemont Blvd., 94538 Freemont, CA
USA
Telephone +1 510 4456150
Fax +1 510 4900651
tempsensing@basf.com

This company is co-exhibitor of
Chemetall GmbH

Hall map

glasstec 2018 hall map (Hall 15): stand E49

Fairground map

glasstec 2018 fairground map: Hall 15

Our range of products

Product categories

  • 05  Measurement, testing, control technology and software
  • 05.01  Measurement and control technology, sensoring
  • 05.01.01  Measurement and control
  • 05.01.01.05  Measurement and control of glass temperature

Our products

Product category: Measurement and control of glass temperature

Melter Bottom Thermocouples

The BASF line of Glass Melter and Refiner Thermocouple Assemblies represent the cumulative benefit of more than 50 years of dedicated design and assembly service to the glass industry. The care and attention to detail in material selection, processing, and assembling, have been developed and established with campaign life as a goal while maintaining EMF stability and reliable performance as a prerequisite.
Bottom melter thermocouples play an important role in the efficient operation of a glass tank. It has been shown that for each 1.3°C lowering of bottom temperature, a typical furnace will save approximately 1% energy. To control the melt process so that lower bottom temperatures can be achieved, while maintaining proper circulation and throat flow demands a high level of reliability in the sensor. In addition, throat flow monitoring, especially gradient temperature determination, is useful if the sensors are stable.

One innovation introduced by BASF that has resulted in more stable performance is Enclad. Enclad was first introduced by BASF to the glass industry in the early 1960s. It is now specified routinely by a number of quality glass producers and major engineering houses for use in bottom immersion applications. Enclad is a precisely controlled combination of thermocouple wires, crushable ceramic and metallic sheath that is assembled under clean conditions and consolidated to an integral product. The consolidation process sinks the metal sheath to the ceramic, pulverizing it to compact around the wires and densifies the composite to be void free.
Enclad thermocouples are not subject to failure due to airborne dust, dirt, or vapors as conventional thermocouples are. When Enclad is assembled with precious metal sheaths into otherwise conventionally designed thermocouples, campaign life experiences have been obtained with excellent retention of calibration. It has been successful in obtaining campaign life and solving problems in electric melt/boost applications. Its concept is now copied by a number of independent thermocouple assembly shops.

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Product category: Measurement and control of glass temperature

Crown Thermocouples

Overheating of the crown in a glass melter promotes accelerated refractory corrosion and wear. Operating a crown at too low a temperature, on the other hand, may reduce melting efficiency and increase fuel consumption. Crown thermocouples provide important data on the operating temperature of the melter, regenerator and refiner.
Determination and control of the melter hot spot, essential for effective glass circulation, can be readily achieved by placing a number of crown thermocouples along the center of the arch. A reliable sensor will also provide the necessary data to prevent potentially destructive overtemperature conditions to occur.
In all gas or oil fired glass melters the crown thermocouple must withstand the highest tank operating temperature.Temperatures of 2800°F to 2900°F are typical. In high alumina or silica glasses, temperatures may exceed 2950°F at the hot spot. For thermocouples to perform dependably great care must be exercised in the selection of materials, particularly with regard to purity, and in their fabrication.The precious metal thermocouple models featured here provide a variety of designs for all crown applications.

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Product category: Measurement and control of glass temperature

Optical Thermometers Semiconductor

BASF EXACTUS®optical thermometers provide critical semiconductor process temperature information that drives better process yields and increases profitability. Exactus technology stands out because of its industry leading capabilities.
Low temperatures (25ºC and higher) are measured using short wavelengths. EXACTUS® probes deliver high precision, with resolution up to 0.001ºC, accuracy of 1.5ºC and extremely low measurement drift.With speeds up to 1,000 readings per second, and a broad dynamic range at any given wavelength, Exactus temperature measurement solutions are well suited for the semiconductor industry.
BASF’s innovative technology offers numerous advantages in controlling wafer-to-wafer uniformity in both temperature and film thickness. The highly sensitive electronics and advanced optics mean shorter wavelength detectors can be used to measure radiant energy. This decreases errors from both wafer transmission and emissivity. Compact size and digital output allow Exactus sensors to be placed directly on or around a process tool, eliminating the need for fiber cables and improving process repeatability. Fiber cables are a primary source of measurement errors. In addition, the instrument’s high speed and high resolution provide better control and noise suppression. The result is better monitoring of wafer temperature and improved process results.

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About us

Company details

BASF supplies a wide range of industries with exceptionally high quality temperature sensing products and calibration services to provide temperature insights, which can enable higher yields and assist our customers with attaining increased profit.

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