发明名称 |
METHOD FOR PRODUCING GLASS VIALS |
摘要 |
A method for producing glass vials, in particular pharmaceutical vials or pharmaceutical ampoules, from a glass tube is provided, the method including the following steps: (a) rotating the glass tube about a longitudinal axis thereof; (b) locally heating the glass tube from one side by means of at least one burner to at least the softening temperature of the glass; (c) reducing the diameter by pressing at least one forming body laterally against the heated region; and (d) separating the glass tube by means of a burner. A glass vial produced in such a way releases a reduced amount of alkali in accordance with ISO 4802 and has a decreased delamination tendency. Furthermore, in the hot-formed peripheral region, the alkali content is only slightly reduced when compared with the alkali content in the glass interior. |
申请公布号 |
EP3022160(A1) |
申请公布日期 |
2016.05.25 |
申请号 |
EP20140733575 |
申请日期 |
2014.06.16 |
申请人 |
SCHOTT AG |
发明人 |
MAENNL, REINHARD;TRATZKY, STEPHAN;JAEGER, FRANZ |
分类号 |
C03B23/049;A61J1/06;C03B23/11 |
主分类号 |
C03B23/049 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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