Dry Ice Blasting with Cold Jet
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INDUSTRIES

DRY ICE BLASTING FOR TIRE MANUFACTURING

Dry Ice Blasting of Tire Molds

BENEFITS OF DRY ICE BLASTING IN THE TIRE MANUFACTURING INDUSTRY
Tire manufacturers have reported some of the benefits they've experienced using Cold Jet's dry ice blasting technology:

  • Production costs reduced by ½ million to one million dollars per facility annually.
  • Press downtime reduced by 300% via in-press mold cleaning.
  • Annual production increased by 3,500 tires per press.
  • Virtually all hand drilling of micro vents eliminated.
  • Near zero-defect levels achieved in curing related blemishes and scrap.
  • Expensive tool damage stopped by reducing disassembly and the incidence of tool misalignment.
  • The need to re-stamp sidewall lettering on after-market brand molds minimized.

Cold Jet customers in the tire industry include over 30 facilities of the world's largest manufacturers and the number is growing each week.

Superior Results!
The following table is an excerpt from a report generated by the corporate engineering staff of one of the world's leading tire manufacturing companies. The data was taken during a side-by-side "shoot-off" of a Cold Jet Single-Hose Radial Feed Series Blast System (Cold Jet VSH) and a blockshaver system using the tire manufacturer's own personnel and pelletized/block dry ice purchased locally by the tire manufacturer. The light truck tire molds were side-by-side in an Akron style clam-shell press, and the molds were maintained at cure temperature for the cleaning trial.

One of the results of this demo was that the customer, who had purchased the block Shaver unit a year earlier, decided to retire the block Shaver unit and replace it in their daily mold sidewall cleaning activities with the Cold Jet Single-Hose Radial Feed Series Dry Ice Blasting System.

2-Piece 36X12.5/16.5 LT Steel Mold

Single-Hose Dry Ice Pellet Blasting   Two-Hose Dry Ice Block Shaving  
Top half sidewall cycle 4 min. 10 sec Top half sidewall cycle 11 min. 40 sec
Nozzle Isentropic (low press) Nozzle Inductive (round)
Blasting pressure 60 psi (4.1 bar) Blasting pressure 70 psi (4.8 bar)
Pellet feed rate 50% CO2 block feed rate 60%
Bottom half sidewall cycle 4 min. 25 sec Bottom half sidewall cycle 11 min. 0 sec
Nozzle Isentropic (low press) Nozzle Inductive (round)
Blasting pressure 60 psi (4.1 bar) Blasting pressure 85 psi (5.9 bar)
Pellet feed rate 50% CO2 block feed rate 60%
Total cleaning cycle 8 min 35 sec Total cleaning cycle 22 min. 40 sec
Total pellet usage 27.6 lbs (12.5 kg) Total CO2 block usage

44 lbs (20 kg)

Tread area (L Avg) @ 80 103.5 dB Tread area (L Avg) @ 80 Not attempted ¹
Tread area (L Avg) @ 90 103.5 dB Tread area (L Avg) @ 90 Not attempted ¹
Blasting pressure 60 psi (4.1 bar) Blasting pressure N/A

Note:
¹ Cleaning of the tread area was attempted with the block Shaver, but the operator was unable to access all areas of the tread and the time-weighted average of the noise generated was higher than OSHA allowable limits.

Summary
Only Cold Jet's patented dry ice technology has proven to give you two to five times the blast aggression for cleaning micro vents without drilling. Tests prove that Cold Jet's single-hose dry ice blasting systems are quieter, use 37% less dry ice and clean in less than half the time of alternative dry ice blasting systems.

When press operators use Cold Jet dry ice blasting to do daily in-press spot cleanings of sidewalls, they eliminate quality problems and dramatically increase the number of cure cycles available between mold cleaningsas the dry ice blasting process cleans micro vents, sidewalls and tread sections of either clam or two-piece tire molds.

To calculate your potential savings click here to access our calculator.
And for more specific and technical information see our technical papers.

 

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