KR102509393B1 - 두께 변동이 감소된 유리 제품, 제조 방법, 및 이를 위한 장치 - Google Patents
두께 변동이 감소된 유리 제품, 제조 방법, 및 이를 위한 장치 Download PDFInfo
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- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B17/00—Forming molten glass by flowing-out, pushing-out, extruding or drawing downwardly or laterally from forming slits or by overflowing over lips
- C03B17/06—Forming glass sheets
- C03B17/064—Forming glass sheets by the overflow downdraw fusion process; Isopipes therefor
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03B—MANUFACTURE, SHAPING, OR SUPPLEMENTARY PROCESSES
- C03B25/00—Annealing glass products
- C03B25/04—Annealing glass products in a continuous way
- C03B25/06—Annealing glass products in a continuous way with horizontal displacement of the glass products
- C03B25/08—Annealing glass products in a continuous way with horizontal displacement of the glass products of glass sheets
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/078—Glass compositions containing silica with 40% to 90% silica, by weight containing an oxide of a divalent metal, e.g. an oxide of zinc
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
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- C—CHEMISTRY; METALLURGY
- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
- C03C3/076—Glass compositions containing silica with 40% to 90% silica, by weight
- C03C3/083—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound
- C03C3/085—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal
- C03C3/087—Glass compositions containing silica with 40% to 90% silica, by weight containing aluminium oxide or an iron compound containing an oxide of a divalent metal containing calcium oxide, e.g. common sheet or container glass
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- C03—GLASS; MINERAL OR SLAG WOOL
- C03C—CHEMICAL COMPOSITION OF GLASSES, GLAZES OR VITREOUS ENAMELS; SURFACE TREATMENT OF GLASS; SURFACE TREATMENT OF FIBRES OR FILAMENTS MADE FROM GLASS, MINERALS OR SLAGS; JOINING GLASS TO GLASS OR OTHER MATERIALS
- C03C3/00—Glass compositions
- C03C3/04—Glass compositions containing silica
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
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Abstract
Description
도 2는 두께 편차를 전시하고, 총 두께 변동(TTV)의 측정을 나타내는 예시적인 유리 시트의 측면도이다.
도 3은 두께 편차를 전시하고, 최대 슬라이딩 간격 범위(MSIR)의 측정을 나타내는 예시적인 유리 시트의 측면도이다.
도 4는 본 발명의 실시양태에 따른 HDD 플래터 블랭크의 사시도이다.
도 5는 예시적인 유리 제조 장치의 개략도이다.
도 6은 도 5의 유리 제조 장치의 일부 개략도이다.
도 7은 본 개시의 다양한 실시양태에 따른 도 6의 장치의 일부 확대도이다.
도 8은 본 개시의 다른 실시양태에 따른 도 6의 장치의 일부 확대도이다.
도 9a는 위에서 본, 도 6의 슬라이드 게이트의 실시양태의 단면도이다.
도 9b는 끝에서 본, 도 9의 슬라이드 게이트의 실시양태의 단면도이다.
도 10은 위에서 본, 슬라이드 게이트의 또 다른 실시양태의 단면도이다.
도 11은 위에서 본, 슬라이드 게이트의 또 다른 실시양태의 부분 단면도이다.
도 12는 위에서 본, 슬라이드 게이트의 또 다른 실시양태의 부분 단면도이다.
도 13은 위에서 본, 슬라이드 게이트의 또 다른 실시양태의 부분 단면도이다.
도 14는 능동적으로 냉각된 슬라이드 게이트를 갖는 모델링된 두께와 비교하여, 능동적으로 냉각된 슬라이드 게이트가 없는, 도 5의 유리 제조 장치를 사용하여 연신된 리본의 폭에 걸친 위치의 함수로서의 실제 두께의 플롯이다.
도 15는 도 14의 실제와 모델링된 두께의 차이의 플롯이다.
도 16은 능동적으로 냉각된 슬라이드 게이트를 갖는 모델링된 두께와 비교하여, 능동적으로 냉각된 슬라이드 게이트가 없는, 도 5의 유리 제조 장치를 사용하여 연신된 리본의 폭에 걸친 위치의 함수로서의 측정된 두께의 플롯이고, 각각의 측정된 데이터 및 모델링된 데이터의 25 ㎜ 슬라이딩 간격에 대한 ΔTmax를 추가로 포함한다.
도 17은 도 16의 각각의 측정된 데이터 및 모델링된 데이터의 100 ㎜ 슬라이딩 간격에 대한 ΔTmax의 플롯이다.
도 18은 세개의 다른 슬라이드 게이트 위치(리본으로부터의 거리)에 대해 예시적인 성형체로부터 연신된 리본의 하부 가장자리(루트) 아래의 거리의 함수로서 두께 섭동의 모델링된 진폭의 플롯이다.
도 19는 도 18의 네 개의 슬라이드 게이트 위치에 대해, 리본의 중심선에 대해 예시적인 성형체로부터 연신된 리본의 폭에 걸친 거리의 함수로서 모델링된 두께 변화의 플롯이다.
도 20은 도 18의 네 개의 슬라이드 게이트 위치 중 하나에 대해, 리본의 중심선에 대해 예시적인 성형체로부터 연신된 리본의 폭에 걸친 거리의 함수로서 모델링된 두께 변화의 플롯으로, 도면은 또한 두께 변화와 관련된 온도 변화의 플롯을 보여준다.
도 21은 도 18의 네 개의 슬라이드 게이트 위치 중 다른 하나에 대해, 리본의 중심선에 대해 예시적인 성형체로부터 연신된 리본의 폭에 걸친 거리의 함수로서 모델링된 두께 변화의 플롯으로, 도면은 또한 두께 변화와 관련된 온도 변화의 플롯을 보여준다.
도 22는 예시적인 성형체로부터 연신된 리본의 두께 섭동의 FWHM(특성 폭)의 함수로서 모델링된 100 ㎜ MSIR의 플롯이다.
Claims (64)
- 880 ㎜ 이상의 길이;
길이와 직교하고 680 ㎜ 이상의 폭;
제1주표면, 제1주표면과 대향하는 제2주표면, 및 제1주표면과 제2주표면 사이에 정의된 두께 T를 포함하고,
유리 제품의 전체 폭에 걸친 총 두께 변동 TTV는 2 ㎛ 이하인 유리 제품. - 제1항에 있어서, 제1 및 제2주표면이 연마되지 않은 유리 제품.
- 제2항에 있어서, 제1 및 제2주표면의 평균 표면 거칠기 Ra는 0.25 ㎚ 이하인 유리 제품.
- 제1항에 있어서, 유리 제품의 폭을 가로질러 5 ㎜씩 증가하여 이동된 미리 결정된 슬라이딩 간격으로부터 얻어진 최대 슬라이딩 간격 범위 MSIR이 2 ㎛ 이하인 유리 제품.
- 제4항에 있어서, 미리 결정된 슬라이딩 간격이 25 ㎜ 내지 750 ㎜의 범위에 있는 유리 제품.
- 880 ㎜ 이상의 길이;
길이와 직교하고 680 ㎜ 이상의 폭;
제1주표면, 제1주표면에 대향하는 제2주표면, 및 제1주표면과 제2주표면 사이에 정의된 두께 T를 포함하고,
유리 제품의 폭을 가로 질러 5 ㎜씩 증가하여 이동된 25 ㎜의 슬라이딩 간격으로부터 얻어진 최대 슬라이딩 간격 범위 MSIR이 2 ㎛ 이하인 유리 제품. - 삭제
- 제6항에 있어서, 제1 및 제2주표면이 연마되지 않은 유리 제품.
- 제8항에 있어서, 제1 및 제2주표면의 평균 표면 거칠기 Ra는 0.25 ㎚ 이하인 유리 제품.
- 제6항에 있어서, 폭이 3100 ㎜ 이상인 유리 제품.
- 제10항에 있어서, 길이가 3600 ㎜ 이상인 유리 제품.
- 880 ㎜ 이상의 길이;
길이와 직교하고 680 ㎜ 이상의 폭;
제1주표면, 제1주표면과 대향하는 제2주표면 및 제1주표면과 제2주표면 사이에 정의된 두께 T를 포함하고,
유리 제품의 전체 폭에 걸친 총 두께 변동 TTV는 2 ㎛ 이하이고, 유리 제품의 폭을 가로 질러 5 ㎜씩 증가하여 이동된 미리 결정된 슬라이딩 간격으로부터 얻어진 최대 슬라이딩 간격 범위 MSIR은 4 ㎛ 이하이고,
제1 및 제2주표면은 연마되지 않은 유리 제품. - 삭제
- 제12항에 있어서, 제1 및 제2주표면의 평균 표면 거칠기 Ra는 0.25 ㎚ 이하인 유리 제품.
- 제12항에 있어서, 미리 결정된 슬라이딩 간격은 25 ㎜ 내지 750 ㎜의 범위인 유리 제품.
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PCT/US2018/019391 WO2018160452A1 (en) | 2017-02-28 | 2018-02-23 | Glass article with reduced thickness variation, method for making and apparatus therefor |
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US20200407259A1 (en) | 2020-12-31 |
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