CN106430928A

CN106430928A - Tempering method of single glass with internal laser 3D pattern

Info

Publication number: CN106430928A
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: 2017-02-22
Anticipated expiration: 2035-08-04
Also published as: CN106430928B

Abstract

The invention provides a method using a double-chamber glass tempering furnace to temper glass with an internal laser 3D pattern. The method has the advantages that the defects that the internal 3D pattern deforms or becomes vague during the tempering of traditional glass with the internal laser 3D pattern, the glass after tempering is large in color difference, the glass easily bursts and deforms during the tempering, and the yield is low are overcome by controlling various process parameters, and the glass is allowed to have the features of common tempered glass.

Description

A kind of toughening method internally setting laser 3D picture monolithic glass

Technical field

The invention belongs to glass tempering technology field, especially relate to a kind of toughening method internally setting laser 3D picture glass.

Background technology

With the fast development of glass art, market has occurred in that in be provided with the glass of laser 3D picture, can use indoors Finishing, the decoration in hotel, shower house, the landscape improvement of room, handrail, railing etc..But, the density one of monolithic simple glass As be 2.5 tons/cubic metre, but molecular structure within monolithic glass after printing through 3D pattern laser, can be changed, have also been changed simultaneously Intrinsic pressure and the stress on surface, this reduces the intensity of glass, thus having potential safety hazard in use.For strengthening glass The intensity of glass so as to safer, accordingly, needs to carry out tempering process to it.But internally set laser 3D picture monolithic glass and adopt With traditional steel process, can cause：1. the 3D pattern setting in deforms or becomes paste；2. before and after tempering, glass color difference is larger； 3. in toughening process, glass can burst and deform, and greatly reduces the qualification rate of product.

Content of the invention

For asking of solving that existing glass tempering process cannot internally set that laser 3D draws that monolithic glass carries out that good tempering processes Topic, the invention provides a kind of internally set, using dual chamber glass tempering furnace, the method that 3D picture glass carries out tempering, it can overcome tradition Inside set the many disadvantages appeared in laser 3D picture glass tempering process, and make this glass have the characteristic of ordinary glass.

In order to realize foregoing invention purpose, the present invention adopts the following technical scheme that：

A kind of toughening method internally setting laser 3D picture glass, comprises the steps：

1) will need to set laser 3D in tempering and draw glass and be placed in preheating furnace glass is carried out with airtight heating, preheating furnace internal upper part Heating-up temperature is 510 DEG C -550 DEG C, and in preheating furnace, bottom heating-up temperature is 510 DEG C -560 DEG C, and heat time heating time is 220 seconds To 240 seconds, during heating, glass uninterruptedly moved in preheating furnace back and forth；

2) glass completing to preheat is sent in heating furnace and is carried out airtight heating again, and heating furnace internal upper part heating-up temperature is 680 DEG C -720 DEG C, in heating furnace, bottom heating-up temperature is 670 DEG C -705 DEG C, and heat time heating time is 120 seconds to 140 seconds, During heating, glass uninterruptedly moves in preheating furnace back and forth；

3) open furnace outlet hermatic door, open air grid, glass enters quench zone after heating furnace, chilling period is for 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 cool 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, and this step can eliminate after heating because of glass and the planted agent through existing when rapidly cooling down Power, improves the safety of glass tempering further；

5) by the glass removal heating furnace after tempering.

Preferably, described preheating furnace and heating furnace are two bodies of heater of continuous dual chamber glass tempering furnace, using dual chamber glass tempering The advantage of stove is that firing rate is fast, and in stove, heating-up temperature steadily equalizes, and the inherence setting the glass of laser 3D picture in tempering can be made residual The permanent stress deposited is released, and then the permanent stress making is eased, and reduces because 3D laser engraving is to inside glass band Stress direction be changed, thus reducing the self-destruction rate of glass.

Preferably, described glass is single-glass, its thickness is 4mm-19mm, the thickness of the existing frequently-used single-glass arriving Degree is exactly between 4mm-19mm, and the single-glass that the present invention is aiming in this thickness range carries out tempering.

Preferably, described step 3) in heating furnace after quench zone, control the chilling upper strata tuyere with the distance of glass to be 35mm-80mm, chilling lower floor tuyere is 35mm-90mm with the distance of glass.Here chilling tuyere may also be referred to as chilling Air grid, refine to each little air port therefore is called tuyere, quench zone divides levels, generally conventional annealing furnace does not have lower floor's tuyere, And continuously double chamber furance has this technique, reach preferable quenching effect by adjusting the distance of glass and levels tuyere, reduce steel The deformation rate changed and the difference of aberration, thus ensureing the definition that 3D draws, complete cooling steel forming step.

Preferably, described step 4) in cooling section after heating furnace, cooling twice temperature is 25 DEG C -80 DEG C, and cooling twice is anti- Feedback thermometric value is 25 DEG C -90 DEG C.Permanent stress for making to set the inherent remaining that laser 3D draws glass in tempering is sufficiently discharged, Allow the permanent stress in 3D safety glass sufficiently to be alleviated, take waste heat recovery after cooling, extend up and down again simultaneously Cool time, and have humidity mutually auxiliary.

Preferably, before step 1, also include internally setting laser 3D and draw glass and carry out edging, cleaning.

The present invention provide tempering in set laser 3D draw glass technique overcome set in traditional laser 3D draw glass tempering process Appeared in the interior 3D pattern setting easily deforms or becomes paste, glass color difference is larger before and after tempering, glass easily occurs in toughening process Burst and deform, the low defect of qualification rate, make this glass have the characteristic of ordinary glass：

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

2. the heat stability setting laser 3D picture glass in after tempering is good, can stand temperature jump scope and reach 250～300 DEG C；

3. set in after tempering laser 3D draw glass broken after become obtuse angle granule, granule number is 50～80, and (granularity refers to produce Product crush after 50 × 50mm transparency area granule number).

Specific embodiment

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

Embodiment 1

1) taking needs to set laser 3D picture glass in tempering, and this thickness of glass is 4mm, carries out edging, cleaning to it；

2) will need to set laser 3D in tempering and draw glass and be placed in preheating furnace glass is carried out with airtight heating, preheating furnace internal upper part Heating-up temperature is 540 DEG C, and in preheating furnace, bottom heating-up temperature is 550 DEG C, and heat time heating time is 220 seconds to 240 seconds, glass during heating Glass uninterruptedly moves in preheating furnace back and forth；

3) glass completing to preheat is sent in heating furnace and is carried out airtight heating again, and heating furnace internal upper part heating-up temperature is 715 DEG C, In heating furnace bottom heating-up temperature be 705 DEG C, heat time heating time be 120 seconds to 140 seconds, during heating glass in preheating furnace back and forth not Interruption moves；

4) open furnace outlet hermatic door, open air grid, glass enters quench zone in heating furnace, chilling period is for 140 seconds extremely 160 seconds, quench zone upper temp was down to 50 DEG C, and quench zone temperature of lower is down to 55 DEG C, controlled chilling upper strata tuyere and glass Distance is 40mm, and chilling lower floor tuyere is 40mm with the distance of glass；

5) glass enters cooling section in heating furnace, and cool time is 120 seconds to 140 seconds, and cooling section upper temp is 65 DEG C, cold But pars infrasegmentalis temperature is 65 DEG C, is 30 DEG C after cooling, and cooling is fed back to 30 DEG C；

6) after completing tempering, by the glass removal heating furnace after tempering.

Embodiment 2- embodiment 8

Using the toughening method internally setting laser 3D picture glass described by embodiment 1, for different-thickness glass, technological parameter See table：

Wherein, thickness refers to thickness of glass, mm；Refer to preheating furnace internal upper part heating-up temperature in preheating, DEG C；Preheating is down in finger preheating furnace Bottom heating-up temperature, DEG C；Top refers to heating furnace internal upper part heating-up temperature, DEG C；Bottom refers to bottom heating-up temperature in heating furnace, DEG C； 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 upper temp in cooling, DEG C； Upper tuyere refers to the distance of chilling upper strata tuyere and glass, mm；Lower tuyere refers to the distance of chilling lower floor tuyere and glass, mm； Refer to cooling twice temperature after cooling, DEG C；Cooling feedback refers to cooling twice feedback thermometric value, DEG C.

Set laser 3D in embodiment 1-8 is obtained and draw the test that safety glass enters row index：

Claims

1. a kind of laser 3D that internally sets draws the toughening method of glass it is characterised in that comprising the steps：

1) will need to set laser 3D in tempering and draw glass and be placed in preheating furnace glass is carried out with airtight heating, preheating furnace internal upper part heats Temperature is 510 DEG C -550 DEG C, and in preheating furnace, bottom heating-up temperature is 510 DEG C -560 DEG C, and heat time heating time is 220 seconds to 240 seconds, During heating, glass uninterruptedly moves in preheating furnace back and forth；

2) glass completing to preheat is sent in heating furnace and is carried out airtight heating again, and heating furnace internal upper part heating-up temperature is 680 DEG C -720 DEG C, In heating furnace, bottom heating-up temperature is 670 DEG C -705 DEG C, and heat time heating time is 120 seconds to 140 seconds, and during heating, glass is in preheating furnace Uninterruptedly move back and forth；

3) open furnace outlet hermatic door, open air grid, glass enters quench zone after heating furnace, chilling period is 140 seconds to 160 Second, quench zone upper temp is 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 cool 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, and this step can eliminate after heating because of glass and the internal stress through existing when rapidly cooling down, and enters One step improves the safety of glass tempering；

5) by the glass removal heating furnace after tempering.

2. a kind of laser 3D that internally sets according to claim 1 draws the toughening method of glass it is characterised in that described preheating furnace Two bodies of heater being continuous dual chamber glass tempering furnace with heating furnace.

3. according to claim 1 a kind of internally set laser 3D draw glass toughening method it is characterised in that described glass as Single-glass, its thickness is 4mm-19mm.

4. a kind of laser 3D that internally sets according to claim 1 draws the toughening method of glass it is characterised in that described step 3) In heating furnace in quench zone, control chilling upper strata tuyere to be 35mm-80mm, chilling lower floor tuyere and glass with the distance of glass The distance of glass is 35mm-90mm.

5. a kind of laser 3D that internally sets according to claim 1 draws the toughening method of glass it is characterised in that described step 4) Cooling section after middle heating furnace, cooling twice temperature is 25 DEG C -80 DEG C, and cooling twice feedback thermometric value is 25 DEG C -90 DEG C.

6. a kind of laser 3D that internally sets according to claim 1 draws the toughening method of glass it is characterised in that in described step 1) Before, also include internally setting laser 3D and draw glass and carry out edging, cleaning.