CN1695531A

CN1695531A - Tailless thermos bottle inner bag and preparation method

Info

Publication number: CN1695531A
Application number: CN 200510025293
Authority: CN
Inventors: 何向辉; 郝成红
Original assignee: Shanghai Institute of Technology
Current assignee: Shanghai Institute of Technology
Priority date: 2005-04-21
Filing date: 2005-04-21
Publication date: 2005-11-16
Anticipated expiration: 2025-04-21
Also published as: CN100386047C

Abstract

A thermos bottle without external sealing tip is composed of internal and external bottles, the plated layer, and three asbestos pads uniformly arranged between internal and external bottles, and features that its sealing tip is in one of asbestos pad between external and external bottles, so it is not destroyed easily. Its preparing technology is also disclosed.

Description

Tailless thermos bottle inner bag and preparation method thereof

Technical field

The present invention relates to a kind of container and preparation method thereof, more particularly relate to a kind of family expenses Tailless thermos bottle inner bag and method thereof with heat insulation function.

Background technology

Having many uses of vacuum flask can be used for storing hot water, holding cold drink and medicine, and the critical piece that plays insulation effect in vacuum flask is a glass liner of thermos.Glass liner of thermos used in everyday all leaves a tail pipe usually in the bottom.Because it is very thin that the tail pipe of vacuum flask is given prominence to the wall of outside at vacuum flask, tail pipe, this just causes glass liner of thermos tail pipe position in transportation, assembling and use to be damaged especially easily, causes glass liner of thermos to lose heat preservation effect.China utility application 00219709.X, publication number 2426717, name is called " glass liner of thermos ", discloses a kind of improved glass liner of thermos, this glass liner of thermos includes inner bag, outer courage, glass liner coating, it is characterized in that being provided with tail pipe at the inner surface of inner bag.Because tail pipe is arranged on the inside of glass liner of thermos, thus this utility model transport and use in tail pipe cracky not.But this utility model exists tail pipe to rupture to the potential danger of glass liner of thermos inside, safety inadequately, and preparation technology is more complicated also.

Summary of the invention

At the problems referred to above, technical problem to be solved by this invention provides a kind of glass liner of thermos that does not have tail pipe, this glass liner of thermos high insulating effect, profile are more attractive in appearance, transportation, assembling, use safer.Another one technical problem to be solved by this invention provides a kind of preparation method of above-mentioned Tailless thermos bottle inner bag, and the Tailless thermos bottle inner bag of this method preparation is cracky not, has prolonged the service life of glass liner of thermos, and technology is simple.

To achieve these goals, the technical scheme that is adopted: a kind of Tailless thermos bottle inner bag, comprise inner bag, outer courage and glass liner coating, be equipped with three asbestos pads that are mutually 120 ° between inner bag and the outer courage, tail pipe shrinks and to be equipped with the gypsum tail pad that disappears on the interface between inner bag and the outer courage.

Described asbestos pad is arranged on the middle part of Tailless thermos bottle inner bag.

A kind of preparation method of Tailless thermos bottle inner bag comprises the following steps:

A. vacuumize at glass liner of thermos, when sealing, control tail pipe length is provided with three asbestos pads that are mutually 120 ° between inside and outside courage in 10mm, the inner bag tail pipe with outside the courage interface gypsum tail pad that disappears is set;

B. heating tail pipe and parts in the 50mm radius on every side thereof in 200 ℃ of flames are bathed make it rapidly, heat up uniformly, and heated perimeter narrows down to tail pipe and on every side in the 30mm radius gradually then;

C. improve tail pipe heating-up temperature to 500～600 ℃ gradually, make the tail pipe thermally equivalent, shrink gradually, then to residual tail pipe even Fast Heating on 360 ° of directions, this moment, temperature was increased to about 800 ℃, make it reach Microsoft's attitude rapidly, under gas pressure, shrink and abut in gypsum that step a is provided with disappear cooling on the tail pad, solidify;

D. the redundance after tail pipe shrinks is removed with the instrument folder in flame, during operation in the temperature of instrument and the flame temperature of tail pipe glass be consistent.

Be controlled at about 30s the heat time heating time of step b.

The flame width of step c is controlled in the 5mm.

The invention has the beneficial effects as follows: there is not residual tail pipe in the glass liner of thermos after the present invention finishes, has fundamentally solved the frangible problem of residual tail pipe.Interior, add the gypsum tail pad that disappears between outer glass liner, the gypsum tail pad that disappears plays a supportive role after shrinking in that tail pipe is softening, has also disperseed the external force that inner bag bore, and makes glass liner firmer.This gypsum tail pad that disappears can also play the getter effect between the vacuum cavity of inside and outside courage, guarantee that vacuum flask has good vacuum.The Tailless thermos bottle inner bag of the present invention preparation cracky not in transportation, assembling and use.Heat insulation effect is good.Press 1,4 test of QB182-81, capacity is that 2000 milliliters, weight are that glass liner of thermos water temperatures in the glass liner after 24 hours of 500 grams are not less than 70 ℃.

Description of drawings

Fig. 1 is described Tailless thermos bottle inner bag structural representation.

The specific embodiment

In conjunction with the accompanying drawings the present invention is described in further detail: as shown in Figure 1, Tailless thermos bottle inner bag of the present invention comprises inner bag 1, outer courage 2, glass liner coating 3 and inside and outside glass liner asbestos pad 6, the outer surface of its inner bag 1 is provided with the gypsum tail pad 4 that disappears, its installation position is on the interior glass liner of eliminating 5 place correspondences behind the tail pipe, and asbestos pad 6 is installed in the body middle part.

The preparation method of Tailless thermos bottle inner bag:

1, gypsum the installing additional of tail pad that disappear:

In body middle part, install additional between outer blank three be mutually 120 asbestos pads of spending after, install the gypsum tail pad that disappears additional, on the glass liner, it is suitable, firm to add holding position at tail pipe and outer blank interface and in being fixed in its position, its size is moderate, can not influence later process.

2, the glass liner of thermos anury is handled:

(1). glass liner of thermos is after vacuumizing and sealing, and tail pipe length should shorten as far as possible, is controlled at 10mm with interior comparatively desirable.

(2). should be rapidly after above-mentioned (1) step is finished evenly heat up in 200 ℃ of flames are bathed, make the tail pipe place and radius 50mm is with interior intensifications unanimity on every side, and radius is contracted in the 30mm about 30s of time gradually.

(3). improve temperature to 500～600 ℃ gradually, make the tail pipe thermally equivalent, this moment, tail pipe should be kermesinus, and shrank gradually.This step temperature can not be too high, and heating surface (area) (HS can not be excessive, and heating surface (area) (HS place temperature should be consistent, otherwise silver coating is easily because of the too high variable color of temperature, and body is easily because of the inequality explosion of being heated.

(4). regulate lamp holder flame temperature is increased to about 800 ℃, adopt flame envelope, make it reach Microsoft's attitude rapidly the even Fast Heating of residual tail pipe 360 degree.Flame width is controlled in the 5mm in this step, and impulsive force can not be excessive during flame combustion, otherwise easily breaks through softening bottle wall.After tail pipe was evenly heated and reaches Microsoft's attitude, on the gypsum of step setting disappeared tail pad 4 before externally tail pipe will shrink and abut under the gas pressure, cooling was solidified.Install the tail pipe pad additional and brought following benefit: the A. tail pipe is softening to be had after shrinking it to support can not to cause hypersystole and thin excessively causing broken.B. because tail pipe shrinks, reclines, the gypsum tail pad that disappears is firmly fixed after abovementioned steps is finished, can not come off because of vibrations.C. play the effect of getter at vacuum space, guaranteed vacuum.D. disperseed the external force that interior glass liner bore, made whole glass liner more sturdy and durable.

(5). the redundance after tail pipe shrinks, should in flame, its folder be removed with tweezers, the temperature of tweezers also should be consistent with the temperature of glass in the flame during operation.

(6). annealing: regulate lamp holder flame after above step is finished rapidly to crocus or blush (this moment, the temperature of flame was lower), annealing gradually under this state, about 30s of time.

More than each operating procedure must keep heating the uniformity of tail pipe temperature, otherwise local can cause than stress greatly and to break because of cold, the overheated generation with excessivelying, above process is finished about 2～3 minutes of total time, and should once finish from start to end, should not drop by the wayside flame and carry out the heating second time, otherwise very easily cause explosion.

Above said content only is the basic explanation of the present invention under conceiving, and according to any equivalent transformation that technical scheme of the present invention is done, all should belong to protection scope of the present invention.

Claims

1. Tailless thermos bottle inner bag, comprise inner bag (1), outer courage (2) and glass liner coating (3), it is characterized in that: be equipped with three asbestos pads (6) that are mutually 120 ° between inner bag (1) and the outer courage (2), tail pipe between inner bag (1) and the outer courage (2) shrinks and is equipped with the gypsum tail pad (4) that disappears on the interface (5).

2. Tailless thermos bottle inner bag according to claim 1 is characterized in that: described asbestos pad (6) is arranged on the middle part of Tailless thermos bottle inner bag.

3. the preparation method of the described Tailless thermos bottle inner bag of claim 1 comprises the following steps:

C. improve tail pipe heating-up temperature to 500～600 ℃ gradually, make the tail pipe thermally equivalent, shrink gradually, then to residual tail pipe on 360 ° of directions evenly the Fast Heating temperature be increased to about 800 ℃, make its reach rapidly Microsoft's attitude under gas pressure, shrinks and abuts in gypsum that step a is provided with disappear cool off on the tail pad, curing;

4. according to the preparation method of the described Tailless thermos bottle inner bag of claim 3, it is characterized in that: be controlled to be about 30s the heat time heating time of step b.

5. according to the preparation method of the described Tailless thermos bottle inner bag of claim 3, it is characterized in that: the flame width of step c is controlled in the 5mm.