CN1141507C - Process for preparing external arc lens of projecting lamp - Google Patents
Process for preparing external arc lens of projecting lamp Download PDFInfo
- Publication number
- CN1141507C CN1141507C CNB011060913A CN01106091A CN1141507C CN 1141507 C CN1141507 C CN 1141507C CN B011060913 A CNB011060913 A CN B011060913A CN 01106091 A CN01106091 A CN 01106091A CN 1141507 C CN1141507 C CN 1141507C
- Authority
- CN
- China
- Prior art keywords
- illumination light
- projecting lamp
- annealing
- external arc
- arc lens
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Re-Forming, After-Treatment, Cutting And Transporting Of Glass Products (AREA)
Abstract
The present invention relates to a method for manufacturing an outer lens of a spot light in the shape of a circular arc, which belongs to the manufacturing method of a matched product of a lighting device. In the present invention, flat glass with good quality is blanked according to dimensions required by different users and put on a mould, and is put into an electric furnace to be heated and shaped. After shaped, the flat glass is put into a low temperature furnace for annealing. After annealed, the flat glass is taken out of the low temperature furnace, and is naturally cooled to be the normal temperature. The outer lens of a spot light in the shape of a circular arc, which is manufactured by the present invention, is a matched product in an illumination light of a railway goods yard, an illumination light of a harbor goods yard, an illumination light of an airport, an illumination light of a mine and an illumination light of a building site. The product has the advantages of firmness, durability, high transparency and low cost.
Description
Technical field:
The present invention is the making method of external arc lens of projecting lamp, belongs to the making method of illuminating equipment auxiliary products.
Background technology:
External arc lens of projecting lamp be used in railway, harbour, harbour, airport, construction site, ore deposit by etc. the auxiliary products on the on-the-spot head light.
At present, the external arc lens of projecting lamp of production is with smelting furnace material meltings such as silica sand, soda ash to be become bath of glass, is blow molded into the hollow glass spheroid then.Adopt the method for expanding with heat and contract with cold that hollow glass ball is cut next circular arc type eyeglass again.With circular arc type eyeglass edging, make finished product again.All the other more than half spheroids become waste material.The outer lens edge section that this method is made is thick, and the centre is thin.Easily broken in carrying, transportation, yield rate is low, and transparency is also bad, the manufacturing cost height.
Summary of the invention:
It is even to the purpose of this invention is to provide a kind of each position thickness of external arc lens of projecting lamp that makes, and the yield rate height is sturdy and durable, the making method that transparency is good.
The present invention realizes with following technical scheme: adopt fine sheet glass, according to the various size cyclotomy of external arc lens of projecting lamp.Be placed on the mould that the stainless steel of respective diameters size makes, in electric furnace, heat to 840 ℃~860 ℃ warm-up time moulding in 4~6 minutes.Be put into the annealing furnace annealing after the moulding again, 400 ℃~450 ℃ of annealing temperatures, annealing time 6~10 hours just can be come out of the stove, naturally cooling.Make external arc lens of projecting lamp.
The external arc lens of projecting lamp that the present invention makes compared with prior art has following advantage and positively effect.
1, each position thickness of external arc lens of projecting lamp is even, sturdy and durable, is difficult for fragmentation, the cost rate height.
2, technology is simple, facility investment is little, low cost of manufacture.
3, transparency is good, improves the job site brightness of illumination.
Embodiment:
Embodiment 1, adopts high-quality 3mm sheet glass, makes the external arc lens of projecting lamp of diameter 412mm finished product, its blank size diameter is 428mm, be slit into disk after, place it on the mould that the stainless steel of respective diameters size makes, put into and heat in the electric furnace, the moulding in 5 minutes of heating to 850 ℃.In electric furnace, take out after the moulding, put the annealing furnace annealing into, 450 ℃ of annealing temperatures, annealing time 8 hours.Come out of the stove then, normal temperature is reduced in cooling naturally.Promptly make finished product.
Embodiment 2, adopt the thick high-quality sheet glass of 3mm, make the external arc lens of projecting lamp that diameter is the 240mm finished product, its blank size diameter is 250mm, be slit into disk, Circular glass sheet after cutting is placed on the stainless steel mould of respective diameters size, puts into and heat in the electric furnace, the moulding in 5 minutes of heating to 840 ℃.In electric furnace, take out after the moulding, put the annealing furnace annealing into, 450 ℃ of annealing temperatures, annealing time 7 hours, normal temperature is reduced in the back cooling naturally of coming out of the stove then, promptly makes finished product.
Claims (1)
1, process for preparing external arc lens of projecting lamp, it is characterized in that according to the various size cyclotomy of external arc lens of projecting lamp, be placed on the mould that the stainless steel of respective diameters size makes, heat in electric furnace to 840 ℃~860 ℃, warm-up time moulding in 4~6 minutes is put into the annealing furnace annealing after the moulding, 400 ℃~450 ℃ of annealing temperatures, annealing time was come out of the stove in 6~10 hours, and normal temperature is reduced in the back cooling naturally of coming out of the stove.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB011060913A CN1141507C (en) | 2001-01-19 | 2001-01-19 | Process for preparing external arc lens of projecting lamp |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CNB011060913A CN1141507C (en) | 2001-01-19 | 2001-01-19 | Process for preparing external arc lens of projecting lamp |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1366158A CN1366158A (en) | 2002-08-28 |
CN1141507C true CN1141507C (en) | 2004-03-10 |
Family
ID=4655143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB011060913A Expired - Fee Related CN1141507C (en) | 2001-01-19 | 2001-01-19 | Process for preparing external arc lens of projecting lamp |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN1141507C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100349031C (en) * | 2005-03-25 | 2007-11-14 | 莱阳市康友玻璃材料有限责任公司 | Method for making automobile headlamp aspheric lens |
-
2001
- 2001-01-19 CN CNB011060913A patent/CN1141507C/en not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN100349031C (en) * | 2005-03-25 | 2007-11-14 | 莱阳市康友玻璃材料有限责任公司 | Method for making automobile headlamp aspheric lens |
Also Published As
Publication number | Publication date |
---|---|
CN1366158A (en) | 2002-08-28 |
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Legal Events
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C10 | Entry into substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
C06 | Publication | ||
PB01 | Publication | ||
C14 | Grant of patent or utility model | ||
GR01 | Patent grant | ||
C19 | Lapse of patent right due to non-payment of the annual fee | ||
CF01 | Termination of patent right due to non-payment of annual fee |