| 摘要 |
<p>The method of producing Christmas tree decorations as well as other decorative items from thin-walled blown glass where the suspension or the fastening axis of the decorative item is located on the blowing axis or outside the blowing axis consists in shaping, after plastification and blowing, of the glass bulb through the stay (4) in order to represent the inside of the mould in the first stage of blowing with the shaping limitations of the shell obtained. Inside the mould (1) there is a closed shaping element in the form of a protrusion (9) which serves the balanced fastening of the hanging element in the first stage of blowing as well as a protrusion (6) for bonding the subsequent elements of the decorative item. The closed protrusion for bonding is secured with a symmetric (3) or an asymmetric (16) plug. Following the removal of the shell from the mould (1), the protrusion (6) opens and a piece of pipe (7) is bonded with that opening on the outside of the protrusion; the opening seals and then that piece of pipe is plastified, it is inserted back in the mould (1) with the plug removed and is blown to obtain the final shape by the full representation of the inside of the mould, while after each heating stage the glass is annealed.</p> |
