Main Sector of relevance\IRC classification 5. Electronics, IT and Telecommunication

5.14 Technology of diamond-like carbonaceous coating application for thermoresistor plates of thermal heads for cash register

Developers’ contact information

Scientific and Engineering Center &ldqup;Plasmoteg&rdqup; of the Physical-Engineering Institute of the National Academy of Sciences of Belarus
1/3 Academician V.F.Kuprevich Street, Minsk BY-220141

Summary

The diamond-like carbonaceous coatings and the technology of their application are designed for effective protection of thermoresistor plate surfaces of cash registers from galling by movable temperature-sensing paper tapes in the stationary and portable cash registers and other heat-sealing recording devices.

Description

The technology consists in chemical deposition from gaseous phase of diamond-like carbonaceous coating application via decompounding of carbon-containing vapor and gas in low-temperature plasma. The technology can be carried out in production conditions using industrial vacuum assemblies. Key engineering-and-economical performance indicators:

• average consumed power – 25 kW,
• maximum batch quantity of thermoresistor plates with dimensions of 10×45 mm in load — 0,05 м²;
• cost value of coating on thermoresistor plates with dimensions 10×45 mm – 0.2 c.u.;
• technical process duration – max. 45 minutes (with the coating thickness being at least 3.5 μm);
• number of controlled process parameters — 4;
• initial temperature of coating application — 20 °C.

• thickness — 2—4 μm;
• hardness — min. 20 GPa;
• thermal fastness — 400 °C;
• abrasive resistance — 50,000 m;
• fast response of thermal printing — 250 Hz
• technical operating life — 10⁸ print cycles.

Technology type

• Other:
  Vacuum plasma technology, new thin-film material.

Technical advantages and economic benefits

As per technical producing characteristics, the protective coatings on the basis of diamond-like carbon conform to international standards. The technological process of their application on thermoresistor plates is much cheaper, simpler and more efficient than technological processes of protective multilayer coatings on the basis of carbon nitrides, oxides and carbides used at present for the same purposes.

Technology differentiation and uniqueness

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Context in which technology was identified

Technopribor JSC (Mogilev), RUE “NIIEVM” (Minsk), coating application on TPG 41-1258.

Technological keywords

Protective diamond-like coating, thermoresistor plate, thermal head.

Development Stage

• Other:
  Experiment-industrial engineering.

Intellectual property rights

• Patent pending
• Specific Patent Information:
  Patent of the Republic of Belarus No. 1463.

Range of applications

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Classifier Used at the EU Innovation Relay Centres

• Electronics, IT and Telecommunication
• Industrial Manufacturing, Material and Transport Technologies

Preferable Regions

• Europe
• Asia

Practical experience

The technological process has been mastered using a number of coating application units.

Environmental impact

None.

Type of collaboration sought

Terms and restrictions

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Available technical assistance