CN106430928B

CN106430928B - A kind of toughening method for internally setting laser 3D and drawing monolithic glass

Info

Publication number: CN106430928B
Application number: CN201510471474.9A
Authority: CN
Inventors: 康明柱; 吴嘉滨
Original assignee: Zhejiang Huoshankou Network Technology Co Ltd
Current assignee: Zhejiang Huoshankou Network Technology Co Ltd
Priority date: 2015-08-04
Filing date: 2015-08-04
Publication date: 2018-11-23
Anticipated expiration: 2035-08-04
Also published as: CN106430928A

Abstract

The method that 3D draws glass progress tempering is internally set using dual chamber glass tempering furnace the present invention provides a kind of, by controlling each technological parameter, it overcomes to set laser 3D in traditional and draw the 3D pattern set in appeared in glass tempering process and easily deforms or becomes that paste, tempering front and back glass color difference be larger, glass easily bursts and deforms in toughening process, the low defect of qualification rate makes the glass have the characteristic of ordinary glass.

Description

A kind of toughening method for internally setting laser 3D and drawing monolithic glass

Technical field

The invention belongs to glass tempering technology fields, more particularly, to a kind of tempering side for internally setting laser 3D and drawing glass Method.

Background technique

With the fast development of glass art, the interior glassware drawn equipped with laser 3D has been had already appeared in the market, can have been used Finishing, the decoration in hotel, shower house, the landscape improvement of room, handrail, railing etc. indoors.But monolithic simple glass is close Degree is usually 2.5 tons/cubic metre, but can change the molecular structure inside monolithic glass after the printing of 3D pattern laser, while The stress for changing intrinsic pressure and surface, this reduces the intensity of glass, to have security risk in use. For the intensity of reinforcing glass, keep its safer, correspondingly, needing to carry out tempering processing to it.However it internally sets laser 3D and draws list Sheet glass uses traditional steel process, will cause：1. the 3D pattern set in deforms or becomes paste；2. glass color before and after tempering Difference is larger；3. glass can burst and deform in toughening process, the qualification rate of product is greatly reduced.

Summary of the invention

It can not internally be set at the good tempering of laser 3D picture monolithic glass progress to solve existing glass tempering process The problem of reason, internally sets the method that 3D draws glass progress tempering using dual chamber glass tempering furnace the present invention provides a kind of, can Overcome traditional interior laser 3D that sets to draw many disadvantages appeared in glass tempering process, and makes the glass that there is common tempering glass The characteristic of glass.

In order to achieve the above-mentioned object of the invention, the present invention adopts the following technical scheme that：

A kind of toughening method for internally setting laser 3D and drawing glass, includes the following steps：

1) it will need to set laser 3D in tempering and draw glass and be placed in preheating furnace and airtight heating is carried out to glass, in preheating furnace Top heating temperature is 510 DEG C -550 DEG C, and lower part heating temperature is 510 DEG C -560 DEG C in preheating furnace, heating time be 220 seconds extremely 240 seconds, glass was uninterrupted mobile back and forth in preheating furnace when heating；

2) glass for completing preheating is sent into heating furnace carries out airtight heating again, and heating furnace internal upper part heating temperature is 680 DEG C -720 DEG C, lower part heating temperature is 670 DEG C -705 DEG C in heating furnace, and heating time is 120 seconds to 140 seconds, glass when heating Glass is uninterrupted mobile back and forth in preheating furnace；

3) furnace outlet hermatic door is opened, air grid is opened, glass enters quench zone after heating furnace, chilling period 140 Second, quench zone upper temp was down to 8 DEG C -60 DEG C, and quench zone temperature of lower is down to 8 DEG C -55 DEG C to 160 seconds；

4) glass enters cooling section after heating furnace, and cooling time is 120 seconds to 140 seconds, and cooling section upper temp is 40 DEG C- 70 DEG C, cooling section temperature of lower is 45 DEG C -70 DEG C, the step can eliminate because after glass heating again through in existing for when rapid cooling Stress further increases the safety of glass tempering；

5) glass after tempering is removed into heating furnace.

Preferably, the preheating furnace and heating furnace are two furnace bodies of continuous dual chamber glass tempering furnace, using dual chamber The advantages of glass tempering furnace is that heating speed is fast, and heating temperature is steadily balanced in furnace, can make the interior glass for setting laser 3D picture of tempering Glass inherence remaining permanent stress be released so that permanent stress be eased, reduce because of 3D laser engraving It is changed to the stress direction of inside glass band, to reduce the self-destruction rate of glass.

Preferably, the glass is single-glass, with a thickness of 4mm-19mm, the existing frequently-used single-glass arrived Thickness is exactly between 4mm-19mm, and the present invention carries out tempering aiming at the single-glass in the thickness range.

Preferably, quench zone after heating furnace in the step 3), controls chilling upper layer tuyere at a distance from glass For 35mm-80mm, chilling lower layer tuyere is 35mm-90mm at a distance from glass.Here chilling tuyere may also be referred to as chilling Air grid refine to each small air port therefore is called tuyere, and quench zone divides upper and lower level, and generally conventional annealing furnace is that do not have lower layer's tuyere , and continuous double chamber furance has this technique, reaches preferable quenching effect at a distance from upper and lower level tuyere by adjusting glass, The deformation rate of tempering and the difference of color difference are reduced, to guarantee the clarity that 3D is drawn, completes cooling steel forming step.

Preferably, cooling section after heating furnace in the step 4), secondary cooling temperature is 25 DEG C -80 DEG C, secondary cold But feedback thermometric value is 25 DEG C -90 DEG C.To obtain the permanent stress for setting the inherence remaining that laser 3D draws glass in tempering sufficiently Release, allow the permanent stress in 3D tempered glass adequately to be alleviated, take after cooling waste heat recycling, again up and down Extend cooling time simultaneously, and has humidity mutually auxiliary.

Preferably, further including internally setting laser 3D to draw glass progress edging, cleaning process before step 1.

The technique that laser 3D picture glass is set in tempering provided by the invention overcomes traditional interior laser 3D that sets and draws glass reinforced plastic The 3D pattern that sets easily deforms or becomes in appeared in change process, and paste, tempering front and back glass color difference be larger, glass in toughening process Glass easily bursts and deforms, the low defect of qualification rate, and the glass is made to have the characteristic of ordinary glass：

1. setting laser 3D in after tempering draws the characteristic that glass has ordinary glass, bending strength is simple glass 4-6 times, impact strength is 4-6 times of simple glass, substantially increases the safety of glass；

2. the thermal stability for setting laser 3D picture glass in after tempering is good, temperature jump range can be subjected to up to 250~300 ℃；

3. set in after tempering laser 3D draw glass it is broken after at obtuse angle particle, granule number is 50~80 (granularities Refer to after product is broken in the granule number of the transparency area of 50 × 50mm).

Specific embodiment

Below by embodiment, the present invention will be further described and explanation.

Embodiment 1

1) the interior laser 3D that sets for needing tempering is taken to draw glass, which is 4mm, carries out edging, scavenger to it Skill；

2) it will need to set laser 3D in tempering and draw glass and be placed in preheating furnace and airtight heating is carried out to glass, in preheating furnace Top heating temperature is 540 DEG C, and lower part heating temperature is 550 DEG C in preheating furnace, and heating time is 220 seconds to 240 seconds, when heating Glass is uninterrupted mobile back and forth in preheating furnace；

3) glass for completing preheating is sent into heating furnace carries out airtight heating again, and heating furnace internal upper part heating temperature is 715 DEG C, lower part heating temperature is 705 DEG C in heating furnace, and heating time is 120 seconds to 140 seconds, and glass is in preheating furnace when heating It is uninterrupted mobile back and forth；

4) furnace outlet hermatic door is opened, air grid is opened, glass enters quench zone in heating furnace, chilling period 140 Second, quench zone upper temp was down to 50 DEG C, and quench zone temperature of lower is down to 55 DEG C to 160 seconds, controlled chilling upper layer tuyere and glass The distance of glass is 40mm, and chilling lower layer tuyere is 40mm at a distance from glass；

5) glass enters cooling section in heating furnace, and cooling time is 120 seconds to 140 seconds, and cooling section upper temp is 65 DEG C, Cooling section temperature of lower is 65 DEG C, is 30 DEG C after cooling, cooling is fed back to 30 DEG C；

6) after completing tempering, the glass after tempering is removed into heating furnace.

Embodiment 2- embodiment 8

Using the toughening method for internally setting laser 3D picture glass described in embodiment 1, for different-thickness glass, technique Parameter see the table below：

Wherein, thickness refers to thickness of glass, mm；Refer to preheating furnace internal upper part heating temperature in preheating, DEG C；Preheat finger preheating furnace down Interior lower part heating temperature, DEG C；Top refers to heating furnace internal upper part heating temperature, DEG C；Lower part refers to lower part heating temperature in heating furnace, ℃；Refer to quench zone upper temp on chilling, DEG C；Refer to quench zone temperature of lower under chilling, DEG C；Refer to cooling section top temperature in cooling Degree, DEG C；Upper tuyere refer to chilling upper layer tuyere at a distance from glass, mm；Lower tuyere refer to chilling lower layer tuyere and glass away from From mm；Refer to secondary cooling temperature after cooling, DEG C；Cooling feedback refers to that secondary cooling feeds back thermometric value, DEG C.

To embodiment 1-8 obtain in set laser 3D draw tempered glass carry out index test：

Claims

1. a kind of toughening method for internally setting laser 3D and drawing glass, it is characterised in that include the following steps：

1) it will need to set laser 3D picture glass in tempering to be placed in preheating furnace to glass progress airtight heating, preheating furnace internal upper part Heating temperature is 510 DEG C -550 DEG C, and lower part heating temperature is 510 DEG C -560 DEG C in preheating furnace, and heating time is 220 seconds to 240 Second, glass is uninterrupted mobile back and forth in preheating furnace when heating；

2) glass for completing preheating is sent into heating furnace carries out airtight heating again, and heating furnace internal upper part heating temperature is 680 DEG C- 720 DEG C, lower part heating temperature is 670 DEG C -705 DEG C in heating furnace, and heating time is 120 seconds to 140 seconds, and glass is pre- when heating It is uninterrupted mobile back and forth in hot stove；

3) open furnace outlet hermatic door, open air grid, glass enters quench zone after heating furnace, chilling period be 140 seconds extremely 160 seconds, quench zone upper temp was down to 8 DEG C -60 DEG C, and quench zone temperature of lower is down to 8 DEG C -55 DEG C；

4) glass enters cooling section after heating furnace, and cooling time is 120 seconds to 140 seconds, and cooling section upper temp is 40 DEG C -70 DEG C, cooling section temperature of lower is 45 DEG C -70 DEG C, the step can eliminate because after glass heating again through answering in existing for when rapid cooling Power further increases the safety of glass tempering；

5) glass after tempering is removed into heating furnace.

2. a kind of toughening method for internally setting laser 3D and drawing glass according to claim 1, it is characterised in that described is pre- Hot stove and heating furnace are two furnace bodies of continuous dual chamber glass tempering furnace.

3. a kind of toughening method for internally setting laser 3D and drawing glass according to claim 1, it is characterised in that the glass Glass is single-glass, with a thickness of 4mm-19mm.

4. a kind of toughening method for internally setting laser 3D and drawing glass according to claim 1, it is characterised in that the step It is rapid 3) in heating furnace after quench zone, control chilling upper layer tuyere at a distance from glass be 35mm-80mm, chilling lower layer tuyere with The distance of glass is 35mm-90mm.

5. a kind of toughening method for internally setting laser 3D and drawing glass according to claim 1, it is characterised in that the step It is rapid 4) in after heating furnace cooling section, secondary cooling temperature be 25 DEG C -80 DEG C, it is 25 DEG C -90 DEG C that secondary cooling, which feeds back thermometric value,.

6. a kind of toughening method for internally setting laser 3D and drawing glass according to claim 1, it is characterised in that in the step It is rapid 1) before, further include internally set laser 3D draw glass carry out edging, cleaning process.