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公开(公告)号：KR100031109B1
公开(公告)日：1990-01-11
申请号：KR1019850005439
申请日：1985-07-29
Applicant: 스미토모덴키고교가부시키가이샤
IPC: C03B37/018 , C03B32/00
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Patent Agency Ranking
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公开(公告)号：KR100024306B1
公开(公告)日：1987-10-13
申请号：KR1019840006519
申请日：1984-10-19
Applicant: 스미토모덴키고교가부시키가이샤 , 니폰 덴신 덴와 가부시끼가이샤
IPC: C03B37/00
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公开(公告)号：KR1019890003707B1
公开(公告)日：1989-09-30
申请号：KR1019850005439
申请日：1985-07-29
Applicant: 스미토모덴키고교가부시키가이샤
IPC: C03B37/018 , C03B32/00
CPC classification number: C03B37/01446
Abstract: A method for producing a glass preform for an optical fiber comprises flame hydrolyzing a glass raw material in an oxyhydrogen flame to form glass fine particles, and depositing the fine particles on a seed member to produce a solid or hollow cylinderical shoot preform, and is characterized by dehydrating the shoot preform by holding the whole preform in a heating atmosphere containing a dehydrating agent kept at 1,100 to 1,400≦̸C for such period of time the diameter of the shoot preform shrinks by at least 20%, and sintering the preform by gradually introducing it into an atmosphere of a pure inert gas kept at a sintering temperature 1500-1900≦̸C.
Abstract translation: 制造光纤用玻璃预制体的方法包括在氢氧焰中使玻璃原料火焰水解而形成玻璃微粒，并将微粒沉积在种子构件上，制成固体或中空圆筒状预成型体，其特征在于 通过将整个预制件保持在含有保持在1100至1400℃的脱水剂的加热气氛中，使枝条预成型件脱水，使芽坯预制件的直径收缩至少20％，并逐渐烧结预成型体 将其引入保持在烧结温度1500-1900℃的纯惰性气体的气氛中; C。
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公开(公告)号：KR100024700B1
公开(公告)日：1987-12-23
申请号：KR1019840006488
申请日：1984-10-18
Applicant: 스미토모덴키고교가부시키가이샤
IPC: C03B37/014
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