CN1945092A - Method for producing vacuum heat insulation plate for high temperature degasser - Google Patents
Method for producing vacuum heat insulation plate for high temperature degasser Download PDFInfo
- Publication number
- CN1945092A CN1945092A CN 200610122872 CN200610122872A CN1945092A CN 1945092 A CN1945092 A CN 1945092A CN 200610122872 CN200610122872 CN 200610122872 CN 200610122872 A CN200610122872 A CN 200610122872A CN 1945092 A CN1945092 A CN 1945092A
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- Prior art keywords
- evaporation type
- type getter
- glass tube
- vip
- getter
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Abstract
The present invention relates to vacuum insulating plate (VIP), and is especially production process of VIP with high temperature getter. The production process includes the following steps: setting evaporating getter inside glass tube; forming vacuum sealing port in one end of the glass tube and vacuumizing in a vacuumizing bench, heating to activate the getter after the pressure is lowered to below 10<-3> Pa and evaporating the getter to form black film; sealing the glass tube with activated getter; setting the glass tube with activated getter into VIP, vacuumizing in a vacuum sealing machine and sealing the VIP after the vacuum reach 1 Pa; pressurizing the sealed VIP to break the glass tube for absorbing air. The process is also suitable for non-evaporating getter, and the present invention has greatly lowered cost.
Description
Technical field
The present invention relates to a kind of vacuum heat-insulating plate (VIP plate), especially relate to a kind of production technology of utilizing the VIP plate of high temperature degasser.
Background technique
In existing VIP production technology, the VIP plate is sealed from vacuum sealer and is promptly dispatched from the factory as finished product after rolling off the production line, but the VIP plate of sealing mouthful, and As time goes on its internal vacuum descends gradually, the thermal conductivity that causes the VIP plate also constantly raises, and finally causes product rejection.This is because after the VIP plate seals mouth, its inner core also can constantly discharge gas, and these gas sources are in the surface absorbed layer of core and barrier material, and these gases that are adsorbed can not thoroughly extract in pumping process, seal mouthful back because desorb discharges again at leisure.Air also can little by little be penetrated into the inside of VIP plate by barrier film on the other hand.Therefore the compound barrier material that leaks anything but be difficult to realize (referring to: the vacuum design handbook third edition).
Toshiba Corporation and Toshiba AVE Co., Ltd disclose a kind of adiabatic body mutually in publication number is the application for a patent for invention of CN1132346, the frame that combines by interior case and outer container, be folded in the polylith vacuum heat-insulating plate between this interior case and the outer container, the thermoinsulation material beyond the vacuum heat-insulating plate; Above-mentioned vacuum heat-insulating plate be the air impermeability packing timber the accommodation section in filling the adiabaticity material and discharging the airtight shape plate that the air in this accommodation section forms; Thermoinsulation material beyond the above-mentioned vacuum heat-insulating plate is filled in being provided with in the vacuum heat-insulating plate space portion in addition between above-mentioned interior case and the outer container.
Owens Corning Corp discloses a kind of method of producing thermal isolating form in publication number is the application for a patent for invention of CN1295917, its step has: continuously vacuum heat-insulating plate is passed to a forming die; Fill between the two adjacent vacuum insulation panels joint at interval with form one comprise above-mentioned vacuum heat-insulating plate roughly be continuous inner core; The edge of filling above-mentioned vacuum heat-insulating plate roughly is continuous lateral margin roughly to be on the continuous inner core above-mentioned, to form; Fibrous reinforcement is placed in the composite to constitute on the above-mentioned outer surface that roughly is continuous inner core; Strengthen material with thermoplastic resin-impregnated fibers; Move past above-mentioned forming die to produce a continuous long piece of thermal isolating form by above-mentioned compound material; Cut off the continuous long piece of above-mentioned continuous insulation template to make the thermal isolating form of at least a size with joint interval in selected filling.
Hitachi Domestic Electrical Appliance Co discloses a kind of manufacture method of vacuum heat-insulating plate in publication number is the application for a patent for invention of CN1603674, thereby it is a manufacture method of making vacuum heat-insulating plate by the combination force that makes inorganic fibers dip bonding agent increasing core material, after making described inorganic fibers soak into tackiness agent, has the drying process that reduces the moisture that floods simultaneously with tackiness agent in the described inorganic fibers.
Summary of the invention
The objective of the invention is to be difficult to realize gastight problem, a kind of manufacture method of vacuum heat-insulating plate is provided at existing compound barrier material.
Step of the present invention is:
1) the evaporation type getter is packed in the glass tube;
2) carry out vacuum sealing port in advance at an end of glass tube, connect exhaust station then;
3) glass tube that installs the evaporation type getter is vacuumized, be lower than 10 in internal pressure
-3Be warmed to 800～900 ℃ with high frequency coil during Pa, the evaporation type getter is activated, flash to the rete of black;
4) to behind the evaporation type getter activated at that glass tube sealed-off exhaust station is standby;
5) glass tube that activates good evaporation type getter will be housed and put into VIP plate internal compartment and place the vacuum sealer exhaust, and, seal and come out of the stove when degree of vacuum during less than 1Pa;
6) with the glass tube pressurization of the VIP plate projection sealed, make it fragmentation and reach air-breathing purpose.
The evaporation type getter is packed in the glass tube, its consumption what according to the decision of the size of VIP plate, computational methods are according to concrete VIP plate, calculate its volume earlier, calculate the increasing amount that 10～15 years life-spans allowed VIP intralamellar part gas again, determine the consumption of evaporation type getter again according to the gettering ability of used evaporation type getter.Described evaporation type getter preferably is selected from barium aluminium nickel, barium titanium, a kind of in the barium thorium etc.
For adopting non-evaporation type getter, step of the present invention is:
1) non-evaporation type getter is pressed into block body with powder metallurgy method, pack into glass tube or square glass box;
2) carry out vacuum sealing port in advance at an end of glass tube or square glass box, connect exhaust station then;
3) glass tube or the square glass box that installs non-evaporation type getter vacuumized, be lower than 10 in internal pressure
-3Be warmed to 300～550 ℃ with high frequency coil during Pa, make non-evaporation type getter activation or activated at, then with glass tube or the slow sealed-off exhaust station of square glass box;
4) to behind non-evaporation type getter activation or the activated at that glass tube or square glass box sealed-off exhaust station is standby;
5) glass tube or the square glass box that activate good non-evaporation type getter will be housed and put into VIP plate internal compartment and place the vacuum sealer exhaust, and, seal and come out of the stove when degree of vacuum during less than 1Pa;
6) with the glass tube or the pressurization of square glass box of the VIP plate projection sealed, make it fragmentation and reach air-breathing purpose.
Non-its consumption of evaporation type getter what according to the decision of the size of VIP plate, computational methods are according to concrete VIP plate, calculate its volume earlier, calculate the increasing amount that 10～15 years life-spans allowed VIP intralamellar part gas again, determine the consumption of used non-evaporation type getter again.The best selected among zirconium aluminium of non-evaporation type getter, zirconium vanadium iron, a kind of in the zircon China ink etc.
The present invention puts into getter before the VIP disc seal, the exhaust of VIP plate is sealed the back and absorbed remaining gas.General getter needs activated at just can use.Because VIP plate non-refractory (serviceability temperature is below 100 ℃) event can only be used the special special-purpose getter that does not need activated at, but it costs an arm and a leg general the need from external import.In order to reduce cost, the present invention take with high temperature degasser and in warm getter substitute the normal temperature getter.Therefore the price of high temperature degasser and middle temperature getter can reduce cost significantly than low a lot of of normal temperature getter.
Embodiment
Embodiment 1
Evaporation type getter barium aluminium nickel is packed in the glass tube, carry out vacuum sealing port in advance, connect exhaust station then at an end of glass tube.The glass tube that installs the evaporation type getter is vacuumized, be lower than 10 in internal pressure
-3Adopt the 13.5KHZ.1kw radio frequency induction furnace to be warmed to 800 ℃ during Pa, the evaporation type getter is activated, flash to the rete of black.To behind the evaporation type getter activated at that glass tube sealed-off exhaust station is standby, put into VIP plate internal compartment and place the vacuum sealer exhaust the glass tube that activates good evaporation type getter is housed, when degree of vacuum during, seal and come out of the stove less than 1Pa.Glass tube pressurization with the VIP plate projection sealed makes it fragmentation and reaches air-breathing purpose.
Pack in the glass tube its consumption of evaporation type getter what according to the size decision of VIP plate, computational methods are according to concrete VIP plate, calculate its volume earlier, calculate the increasing amount that 10～15 years life-spans allowed VIP intralamellar part gas again, determine the consumption of evaporation type getter again according to the gettering ability of used evaporation type getter.For example: the VIP plate of 45 * a 28 * 2.5cm, its volume V is 3.15L, requiring working life is 10 years, the degree of vacuum of VIP intralamellar part when determining life termination earlier, we can calculate the maximum leak rate Q that allows
Q＝(P
2-P
1)V/t
＝(50-1)3.15/10×365×24×3600
＝1.54×10
2/3.15×10
8
＝4.9×10
-7Pa.L/s
In the formula,
P
1: initial depression (degree of vacuum during the VIP disc seal, unit: Pa);
P
2: the life-span degree of vacuum (unit: Pa) at the end;
Maximum leak rate (the unit: Pa.L/S) that allows of Q:10 life-span per second;
Volume (the unit: L) of V:VIP plate;
T: the time (unit: S).
Above-mentioned showing, the maximum permission of 10 year life-span per second leak rate is 4.9 * 10
-7Pa.L/s, the total amount of the 10 years gas that bleeds is 1.55 * 10
2PaL.
If the gettering quantity of the every gram of certain high temperature degasser is:
H
2O： 2×10
2PaL
O+N： 1.5×10
2PaL
H： 0.9×10
2PaL
Putting into 2 gram getters according to above data in this piece VIP plate gets final product.
Embodiment 2
Similar to Example 1, its difference is that the evaporation type getter adopts barium titanium evaporation type getter, and the temperature that described radio frequency induction furnace is heated is 900 ℃.
Embodiment 3
Similar to Example 1, its difference is that the evaporation type getter adopts barium thorium evaporation type getter, and the temperature that described radio frequency induction furnace is heated is 850 ℃.
Embodiment 4
Non-evaporation type getter zirconium aluminium is pressed into block body with powder metallurgy method, and the glass tube of packing into is carried out vacuum sealing port in advance at an end of glass tube, connects exhaust station then.The glass tube that installs non-evaporation type getter is vacuumized, be lower than 10 in internal pressure
-3Adopt the 13.5KHZ.1kw radio frequency induction furnace to be warmed to 450 ℃ during Pa, make non-evaporation type getter activation or activated at, then with the slow sealed-off exhaust station of glass tube.To behind activation of non-evaporation type getter or the activated at that glass tube sealed-off exhaust station is standby, put into VIP plate internal compartment and place the vacuum sealer exhaust the glass tube that activates good non-evaporation type getter is housed, when degree of vacuum during, seal and come out of the stove less than 1Pa.Glass tube pressurization with the VIP plate projection sealed makes it fragmentation and reaches air-breathing purpose.
The consumption of non-evaporation type getter zirconium aluminium is according to the size decision of VIP plate, computational methods are according to concrete VIP plate, calculate its volume earlier, calculate the increasing amount that 10～15 years life-spans allowed VIP intralamellar part gas again, determine the consumption of used non-evaporation type getter again.For example: the VIP plate of 45 * a 28 * 2.5cm, its volume V is 3.15L, requiring working life is 10 years, the degree of vacuum of VIP intralamellar part when determining life termination earlier, we can calculate maximum and allow leak rate Q to be:
Q＝(P
2-P
1)V/t
＝(50-1)3.15/10×365×24×3600
＝1.54×10
2/3.15×10
8
＝4.4×10
-6Pa.L/s
In the formula,
P
1: initial depression (degree of vacuum during the VIP disc seal, unit: Pa);
P
2: the life-span degree of vacuum (unit: Pa) at the end;
Maximum leak rate (the unit: Pa.L/S) that allows of Q:10 life-span per second;
Volume (the unit: L) of V:VIP plate;
T: the time (unit: S).
Above-mentioned showing, the maximum permission of 10 year life-span per second leak rate is 4.4 * 10
-6Pa.L/s, the total amount of the 10 years gas that bleeds is 1.4 * 10
2PaL.
If the gettering quantity of the every gram of certain high temperature degasser is:
H
2O： 2×10
2PaL
O+N： 1.5×10
2PaL
H： 0.9×10
2PaL
Putting into 2 gram getters according to above data in this piece VIP plate gets final product.
Embodiment 5
Similar to Example 4, its difference is that non-evaporation type getter adopts the non-evaporation type getter of zirconium vanadium iron, and the temperature that described radio frequency induction furnace is heated is 300 ℃.
Embodiment 6
Similar to Example 4, its difference is that non-evaporation type getter adopts the non-evaporation type getter of zircon China ink, and described glass tube is replaced by the square glass box, and the temperature that described radio frequency induction furnace is heated is 550 ℃.
Claims (8)
1. high temperature degasser is used for the manufacture method of vacuum heat-insulating plate, it is characterized in that the steps include:
1) the evaporation type getter is packed in the glass tube;
2) carry out vacuum sealing port in advance at an end of glass tube, connect exhaust station then;
3) glass tube that installs the evaporation type getter is vacuumized, be lower than 10 in internal pressure
-3The evaporation type getter is activated, flash to the rete of black;
4) to behind the evaporation type getter activated at that glass tube sealed-off exhaust station is standby;
5) glass tube that activates good evaporation type getter will be housed and put into VIP plate internal compartment and place the vacuum sealer exhaust, and, seal and come out of the stove when degree of vacuum during less than 1Pa;
6) with the glass tube pressurization of the VIP plate projection sealed, make it fragmentation and reach air-breathing purpose.
2. high temperature degasser as claimed in claim 1 is used for the manufacture method of vacuum heat-insulating plate, it is characterized in that of the size decision of described its consumption of evaporation type getter according to the VIP plate, computational methods are the volumes that calculate the VIP plate, calculate the increasing amount that 10～15 years life-spans allowed VIP intralamellar part gas again, determine the consumption of evaporation type getter again according to the gettering ability of used evaporation type getter.
3. high temperature degasser as claimed in claim 1 or 2 is used for the manufacture method of vacuum heat-insulating plate, it is characterized in that described evaporation type getter is selected from barium aluminium nickel, barium titanium or barium thorium.
4. high temperature degasser as claimed in claim 1 is used for the manufacture method of vacuum heat-insulating plate, it is characterized in that in step 3, adopts high frequency coil to be warmed to 800～900 ℃, and the evaporation type getter is activated.
5. high temperature degasser is used for the manufacture method of vacuum heat-insulating plate, it is characterized in that the steps include:
1) non-evaporation type getter is pressed into block body with powder metallurgy method, pack into glass tube or square glass box;
2) carry out vacuum sealing port in advance at an end of glass tube or square glass box, connect exhaust station then;
3) glass tube or the square glass box that installs non-evaporation type getter vacuumized, be lower than 10 in internal pressure
-3Make non-evaporation type getter activation or activated at during Pa, then with glass tube or the slow sealed-off exhaust station of square glass box;
4) to behind non-evaporation type getter activation or the activated at that glass tube or square glass box sealed-off exhaust station is standby;
5) glass tube or the square glass box that activate good non-evaporation type getter will be housed and put into VIP plate internal compartment and place the vacuum sealer exhaust, and, seal and come out of the stove when degree of vacuum during less than 1Pa;
6) with the glass tube or the pressurization of square glass box of the VIP plate projection sealed, make it fragmentation and reach air-breathing purpose.
6. high temperature degasser as claimed in claim 5 is used for the manufacture method of vacuum heat-insulating plate, it is characterized in that described non-its consumption of evaporation type getter what according to the decision of the size of VIP plate, computational methods are according to concrete VIP plate, calculate its volume earlier, calculate the increasing amount that 10～15 years life-spans allowed VIP intralamellar part gas again, determine the consumption of used non-evaporation type getter again.
7. high temperature degasser as claimed in claim 6 is used for the manufacture method of vacuum heat-insulating plate, it is characterized in that described non-evaporation type getter selected among zirconium aluminium, zirconium vanadium iron or zircon China ink.
8. high temperature degasser as claimed in claim 5 is used for the manufacture method of vacuum heat-insulating plate, it is characterized in that in step 3, is warmed to 300～550 ℃ with high frequency coil, makes non-evaporation type getter activation or activated at.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101228720A CN100424402C (en) | 2006-10-23 | 2006-10-23 | Method for producing vacuum heat insulation plate for high temperature degasser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2006101228720A CN100424402C (en) | 2006-10-23 | 2006-10-23 | Method for producing vacuum heat insulation plate for high temperature degasser |
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| Publication Number | Publication Date |
|---|---|
| CN1945092A true CN1945092A (en) | 2007-04-11 |
| CN100424402C CN100424402C (en) | 2008-10-08 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2006101228720A Active CN100424402C (en) | 2006-10-23 | 2006-10-23 | Method for producing vacuum heat insulation plate for high temperature degasser |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557412A (en) * | 2012-03-05 | 2012-07-11 | 天津沽上真空玻璃制造有限公司 | Preparation method for vacuum glass getter pipe |
| CN102583987A (en) * | 2012-03-05 | 2012-07-18 | 天津沽上真空玻璃制造有限公司 | Method for storing and releasing vacuum glass getter |
| CN103322383A (en) * | 2013-07-04 | 2013-09-25 | 南京善工真空电子有限公司 | Vacuum insulated panel producing method utilizing evaporable getter |
| CN106595198A (en) * | 2016-11-01 | 2017-04-26 | 青岛海尔股份有限公司 | Vacuum heat insulating board and refrigerator |
| CN106838549A (en) * | 2016-12-22 | 2017-06-13 | 南京华东电子真空材料有限公司 | A kind of Combined getter of safe absorbable nitrogen |
| CN107098603A (en) * | 2017-04-26 | 2017-08-29 | 洛阳兰迪玻璃机器股份有限公司 | A kind of Activiation method of vacuum glass built-in getters |
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| CA2152833A1 (en) * | 1994-07-06 | 1996-01-07 | Timothy A. Neeser | Vacuum insulation panel and method for manufacturing |
| JPH08173331A (en) * | 1994-12-27 | 1996-07-09 | Nippon Sanso Kk | Vacuum thermal insulating layer |
| JPH1194188A (en) * | 1997-09-19 | 1999-04-09 | Benkan Corp | Vacuum insulating body, vacuum insulating pipe and vacuum insulating and heat transporting piping |
| JPH11132389A (en) * | 1997-10-29 | 1999-05-21 | Hitachi Ltd | Vacuum heat insulating panel |
| JP4185690B2 (en) * | 2002-01-17 | 2008-11-26 | 象印マホービン株式会社 | Metal vacuum structure |
| CN2703182Y (en) * | 2004-03-30 | 2005-06-01 | 宜兴市四通家电配套厂 | Improved vacuum thermal insulating felt |
| CN1757432A (en) * | 2004-10-09 | 2006-04-12 | 成都思摩纳米技术有限公司 | Gas absorption agent used for vacuum heat-insulation material |
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2006
- 2006-10-23 CN CNB2006101228720A patent/CN100424402C/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102557412A (en) * | 2012-03-05 | 2012-07-11 | 天津沽上真空玻璃制造有限公司 | Preparation method for vacuum glass getter pipe |
| CN102583987A (en) * | 2012-03-05 | 2012-07-18 | 天津沽上真空玻璃制造有限公司 | Method for storing and releasing vacuum glass getter |
| CN103322383A (en) * | 2013-07-04 | 2013-09-25 | 南京善工真空电子有限公司 | Vacuum insulated panel producing method utilizing evaporable getter |
| CN106595198A (en) * | 2016-11-01 | 2017-04-26 | 青岛海尔股份有限公司 | Vacuum heat insulating board and refrigerator |
| CN106595198B (en) * | 2016-11-01 | 2019-11-26 | 青岛海尔股份有限公司 | Vacuum heat-insulating plate and refrigerator |
| CN106838549A (en) * | 2016-12-22 | 2017-06-13 | 南京华东电子真空材料有限公司 | A kind of Combined getter of safe absorbable nitrogen |
| CN107098603A (en) * | 2017-04-26 | 2017-08-29 | 洛阳兰迪玻璃机器股份有限公司 | A kind of Activiation method of vacuum glass built-in getters |
| CN107098603B (en) * | 2017-04-26 | 2020-10-30 | 洛阳兰迪玻璃机器股份有限公司 | Activation method of built-in getter of vacuum glass |
Also Published As
| Publication number | Publication date |
|---|---|
| CN100424402C (en) | 2008-10-08 |
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Owner name: FUJIAN SAITE NEW MATERIALS CO., LTD. Free format text: FORMER OWNER: XIAMEN GAOTE HIGH-TECH MATERIALS CO., LTD. Effective date: 20091002 |
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Effective date of registration: 20091002 Address after: Industrial Park, Liancheng County, Fujian Patentee after: Fujian Super Tech Advanced Material Co., Ltd. Address before: No. 99, Liantang Road, industrial zone, Jimei, Xiamen, Fujian Patentee before: Gaotegao New Material Co., Ltd., Xiamen |
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Address after: 366200 Liancheng Industrial Park, Liancheng County, Fujian, Longyan Patentee after: Fujian SuperTech Advanced Material Co., Ltd. Address before: 366200 Liancheng Industrial Park, Liancheng County, Fujian Patentee before: Fujian Super Tech Advanced Material Co., Ltd. |