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Orifice Rings for Glass Hot End

High Thermal Resistance Products

Orifice Rings for Glass Hot End

The Orifice Ring we produced also including the quality Zircon-Mullite (10-13% ZrO2 ;18-20% ZrO2 ).
As a daily work, we handle the testing of samples as following method:
Three vertical positions (top, middle and low) and five horizontal positions(right, mid-right, middle, mid-left and left), For each area, we can introduce a cloured tracer representing a glass defect as a 'heterogeneity in the glass structure'. High-resolution cameras record the behavior of the tracer. Results more than 150 trails were made covering all the above cases. to evaluate the performance of the patented rotor-tube we established a ranking from one to five as:
1. Sharp cord in the Orifice Ring.
2. Nearly sharp cord in the Orifice Ring.
3. Part of the tracer is mixed, part is nearly invisible cord in the Orifice Ring.

    Features

    95% corundum/99,7% corundum

    The orifice ring with oxide ceramic insert for the packaging glass producers has been developed by HENGLI many-many years ago.

    More and more glass makers dedicated to LONG-PRODUCTION RUN if producing the same container non-stop.

    Several technical solutions as well as economical less or more expensive inserting solution existing on the market.

    Application

    The clear, added-value of these HENGLI-made solutions is confirmed by many glass makers including all International Groups in Glass Packaging experiencing really a huge savings with a life spam 70-150 days depending on gob-temperature and pulling rate especially for DG/TG.

    Very best advantage of these inserts Orifice ring having no decolorization even for flint and extra flint glass at all.

    Long-run options: 88% zircon-corundum/95% high-zirconia.

    HENGLI-isostatic pressed inserted options either high-alumina-based ceramics with proper machining or developing a new solution with high- alumina-zirconia solutions (pilot project), that will grant even longer life spam, but having relatively low thermal shock- resistance.

    Chemical & Physical Data

    Orifice ring Z20-CFP
    CHEMICAL COMPOSITION %
     AL203[%] 67
     Zr0 [%] 20
    Si0 [%] 12
    Fe203[%]  0,1
    Na0[%] 0,2
     Ti02[%]  0,1
    PHYSICAL PARAMETERS
     Apparent density [g/cm"]  2,65
     Cold crushing strength [N/mm] 50
     Open porosity [%]  29
     Thermal expansion at 1000℃:  0,7
    Application temperature limit ℃: