CN2248191Y

CN2248191Y - Bracket support type platinum alloy dropping plate for glass fibre wire-drawing

Info

Publication number: CN2248191Y
Application number: CN 96231562
Authority: CN
Inventors: 覃家文; 张龙璋; 杨国喜
Original assignee: Nanjing Glass Fiber Research & Design Inst State Bureau Of Building Material I
Current assignee: Nanjing Glass Fiber Research & Design Inst State Bureau Of Building Material I
Priority date: 1996-04-03
Filing date: 1996-04-03
Publication date: 1997-02-26
Anticipated expiration: 2006-04-03

Abstract

The utility model relates to a bracket support type platinum alloy dropping plate for glass fibre wire-drawing, which is an improvement for the existing platinum alloy dropping plates. The lower part of a dropping plate (1) is provided with a longitudinal cooler for flowing and cooling water, and the cooler is composed of a water inlet pipe (4), a cooling pipe (5) and a water return pipe (6). The cooler is used for supporting the dropping plate (1) via a plurality of supporting columns (2) having high temperature resistance and low heat conductivity. The dropping plate (1) is simply and effectively prevented from deformation at high temperature, the consumption of expensive platinum alloy is saved, and the service life of the dropping plate is prolonged without the influence on wire-drawing operating temperature. The utility model is particularly suitable for wire-drawing operation with multiple rows and holes.

Description

Glass fiber wire-drawing is with holding in the palm the column type platinum alloy bushing

Glass fiber wire-drawing closes the box bushing with holder column type platinum, is one of crux equipment of glass fiber wire-drawing production, is to the improvement of existing glass fiber wire-drawing with platinum alloy bushing.

As everyone knows, when producing glass fibre, must use can the platinum alloy bushing of withstand temp up to 1200-1300 ℃.Under such high temperature, the intensity of platinum alloy and modulus of elasticity are all very low.Under glass hydraulic pressure and self gravitation effect, platinum alloy bushing is easy to produce distortion, thereby has shortened platinum alloy bushing work-ing life greatly.In order to reduce bushing Deformation velocity at high temperature, prolong bushing work-ing life, existing bushing often is designed to reinforcement type and joist type.

Reinforcement type bushing structure is several strength bar of welding in the bushing groove, with the enlarging section modulus, reduces the Deformation velocity under the bushing high temperature.But because platinum alloy non-deformability under 1250-1300 ℃ of high temperature is very low, the bushing of this structure is very limited work-ing life, greatly about 4-5 month.And increased the platinum alloy consumption greatly after adding the weldering strength bar, thereby increased the bushing cost of manufacture.

Joist type bushing then is that a thick beams of metal is arranged below bushing, and it contacts with bushing spatial big area by refractory materials, supports whole bushing.Though this method also can solve the bushing problem on deformation, because the thickness and the size of beam are bigger, make the bushing size bigger than normal, because beam and bushing contact area are big, thermal conductive surface is also big simultaneously.So both increase power consumption, caused the inhomogeneous of bushing temperature again, influenced the stable of wire-drawing operation.

The purpose of this utility model is to propose a kind of holder column type structure with water cooler at the problem of above-mentioned two kinds of structures existence, and its can prevent that simple and effectively leakage-stopping board at high temperature is out of shape, and also can not cause the non-uniform temperature of wire-drawing operation.Whole bushing structure is small and exquisite, can save a large amount of expensive platinum alloy consumptions.

Technical solution of the present utility model is: it mainly is made up of bushing (1) and water cooler, and water cooler is to be made of water inlet pipe (4), cooling tube (5) and return water pipe (6), it is characterized in that water cooler passes through N holder post (2) and supports bushing (1).The quantity N of holder post (2) depends on the bushing size, and holder post (2) is located on the cooling tube (5) lets slip a remark between (3), keeps a determining deviation between the holder post (2).

Adopt the platinum alloy bushing of technical solutions of the utility model manufacturing to have vertical water flowing refrigerative water cooler, supported bushing by a plurality of holder posts (2), solve a bushing high temperature deformation difficult problem simply and effectively, prolonged bushing work-ing life, saved platinum alloy consumption 30%-50%.Because reasonable in design, it not only can not bring detrimentally affect but also can also improve wire drawing output owing to improved silk root cooling intensity to wire-drawing operation.

Fig. 1 is the longitudinal sectional drawing of the utility model bushing;

Fig. 2 is the utility model bushing A-A place transverse cross-sectional view;

The 1-bushing 2-holder post 3-4-water inlet pipe 5-cooling tube 6-return water pipe 7-web member 8-fiber drawing furnace frame bottom plate of leting slip a remark.

Below in conjunction with drawings and Examples the utility model is described in further detail.

With the platinum bushing of making 800 hole platinum rhodiums 10% is example.Bushing (1) is of a size of 325 * 90mm, and holder post (2) is five row, 8 of every row, and N=40, Φ=3mm, height is 4.5mm, material is a corundum.Water inlet pipe (4), return water pipe (5) Φ=20mm material are stainless steel.Per two rows let slip a remark and are provided with a vertical water flowing cooling tube (5) between (3), and it is a rectangle, and length=330mm is wide=4mm, height=11mm.Be welded as a whole as shown in Figure 1, be fixed on the fiber drawing furnace frame bottom plate (8) by web member (7), to be 2000kg save platinum 43% than same specification bushing to the total consumption of this bushing platinum alloy, prolongs that the bushing temperature difference is less than 2% more than one times work-ing life, and the wire drawing daily output improves at least 5%.

Claims

1, glass fiber wire-drawing is with holding in the palm the column type platinum alloy bushing, mainly form by bushing (1) and water cooler, its water cooler is to be made of water inlet pipe (4), cooling tube (5) and return water pipe (6), it is characterized in that water cooler supports bushing (1) by N holder post (2).

2, glass fiber wire-drawing according to claim 1 is with holding in the palm the column type platinum alloy bushing, it is characterized in that holding in the palm the quantity N of post (2) to determine by the bushing size, holder post (2) is provided in a side of on the cooling tube (5), is positioned at and lets slip a remark between (3), keeps a determining deviation between the holder post (2).