摘要:
Processes and systems for producing molten glass using submerged combustion melters, including densifying an initial composition comprising vitrifiable particulate solids and interstitial gas to form a densified composition comprising the solids by removing a portion of the interstitial gas from the composition. The initial composition is passed from an initial environment having a first pressure through a second environment having a second pressure higher than the first pressure to form a composition being densified. Any fugitive particulate solids escaping from the composition being densified are captured and recombined with the composition being densified to form the densified composition. The densified composition is fed into a feed inlet of a turbulent melting zone of a melter vessel and converted into turbulent molten material using at least one submerged combustion burner in the turbulent melting zone.
摘要:
Processes and systems for producing molten glass using submerged combustion melters, including densifying an initial composition comprising vitrifiable particulate solids and interstitial gas to form a densified composition comprising the solids by removing a portion of the interstitial gas from the composition. The initial composition is passed from an initial environment having a first pressure through a second environment having a second pressure higher than the first pressure to form a composition being densified. Any fugitive particulate solids escaping from the composition being densified are captured and recombined with the composition being densified to form the densified composition. The densified composition is fed into a feed inlet of a turbulent melting zone of a melter vessel and converted into turbulent molten material using at least one submerged combustion burner in the turbulent melting zone.
摘要:
A glass composition useful in preparing fiberglass comprises 12 to 25 weight % CaO; 12 to 16 weight % Al2O3; 52 to 62 weight % SiO2; 0.05 to 0.8 Fe2O3; and greater than 2 up to about 8 weight % alkali metal oxide.
摘要翻译:用于制备玻璃纤维的玻璃组合物包含12-25重量%的CaO; 12至16重量%的Al 2 O 3; 52〜62重量%SiO 2; 0.05〜0.8 Fe2O3; 和大于2至约8重量%的碱金属氧化物。
摘要:
A shade for removable attachment to a headlamp assembly having a headlamp connected to a head-strap where the shade is formed from first and second flexible, translucent wall panels which may lay flat against each other when not in use. The shade includes notches formed in each wall panel to which the segments of the head-strap located on either side of the headlamp may be removably connected. The headlamp assembly and shade when connected together may be suspended from a fixed point or placed upon a flat surface thereby creating a hands-free lantern.
摘要:
A glass composition useful in preparing fiberglass comprises 12 to 25 weight % CaO; 12 to 16 weight % Al2O3; 52 to 62 weight % SiO2; 0.05 to 0.8 Fe2O3; and greater than 2 up to about 8 weight % alkali metal oxide.
摘要翻译:用于制备玻璃纤维的玻璃组合物包含12-25重量%的CaO; 12至16重量%的Al 2 O 3; 52〜62重量%SiO 2; 0.05〜0.8 Fe2O3; 和大于2至约8重量%的碱金属氧化物。
摘要:
A shade for removable attachment to a headlamp assembly having a headlamp connected to a head-strap where the shade is formed from first and second flexible, translucent wall panels which may lay flat against each other when not in use. The shade includes notches formed in each wall panel to which the segments of the head-strap located on either side of the headlamp may be removably connected. The headlamp assembly and shade when connected together may be suspended from a fixed point or placed upon a flat surface thereby creating a hands-free lantern.
摘要:
A glass composition useful in preparing fiberglass comprises 12 to 25 weight % CaO; 12 to 16 weight % Al2O3; 52 to 62 weight % SiO2; 0.05 to 0.8 Fe2O3; and greater than 2 up to about 8 weight % alkali metal oxide.
摘要翻译:用于制备玻璃纤维的玻璃组合物包含12-25重量%的CaO; 12至16重量%的Al 2 O 3; 52〜62重量%SiO 2; 0.05〜0.8 Fe2O3; 和大于2至约8重量%的碱金属氧化物。