Porcelain composite cooker liner preparation method
Technical field
The present invention relates to a kind of inner-tube structure of cooker and make the method for this composite inner liner.
Background technology
Electric cooker is the requisite cooker of family cooking, be mainly used in cooking and steaming dish etc., existing electric cooker generally adopts electric hot tray to heat, and therefore the inner bag of electric cooker must adopt aluminium alloy to make so that the heat of electric hot tray can be delivered to inner bag rapidly.There is following shortcoming in traditional electric cooker: 1, aluminium element is being cooked and may be absorbed by the body in use procedure to the aluminium alloy of inner bag, and show according to Recent study, too much absorption aluminium can be unhealthful; 2, because the heat of electric hot tray is the exterior bottom being directly delivered to inner bag by bottom, and be swiftly delivered to bottom inner side of liner, therefore occur bottom inner bag when cooking that meal is burnt, need to add non-sticking lining in the inner side of inner bag for solving the burnt problem of meal, but also there is certain influence in the chemical substance of Long-Time Service meeting wear out failure and existing non-sticking lining to health in non-sticking lining.For solving the problem, there is the inner bag adopting potter's clay to make on the market, as boccaro electric cooker etc., the hardness of first this ceramic inner container of electric cooker is poor, rough surface and due to the heat conductivility of potter's clay poor, bottom temp is easily formed high during heating, food burnt and tightly be bonded at the bottom of a pan, be difficult to remove.Relative potter's clay, the container of existing porcelain has higher hardness, better heat conductivility and, porcelain container can to form the smooth and enamel that hardness is higher by the mode of glazing on its surface, can prevent from scratching on the one hand, antistick layer can be formed by enamel on the other hand, cannot not reach stickyly effect., existing porcelain container is used for some containers manufacturing life, does not find its inner bag for the manufacture of cooker.
Summary of the invention
The object of this invention is to provide a kind of porcelain composite cooker liner, the surface that can touch when food materials are cooked is porcelain internal layer, health environment-friendly more, composite skins makes porcelain internal layer can obtain more uniform heating effect simultaneously, can also ensure that porcelain internal layer is not easily broken in addition.
Present invention also offers the preparation method of porcelain composite cooker liner, be easy to make, can effectively combine between different material layer simultaneously.
The present invention realizes above-mentioned purpose like this:
Porcelain composite cooker liner, adopt the porcelain cooker internal layer that china clay is fired, the interior table of porcelain cooker internal layer forms enamel skin, the appearance of porcelain cooker internal layer is compounded with the middle heat conductive layer adopting aluminum or aluminum alloy formable layer, middle heat conductive layer appearance is compounded with stainless steel top layer, the open-mouth of described porcelain cooker internal layer is provided with flanging, and stainless steel top layer extends to flanging and by flanging and flanging fastening.
Wherein, described middle heat conductive layer covers the outer bottom of porcelain cooker internal layer and the partial lateral wall of porcelain cooker internal layer, forms hollow layer between all the other lateral walls of porcelain cooker internal layer and stainless steel top layer.
A kind of preparation method of porcelain composite cooker liner, comprises following processing step:
A. adopt china clay to form by a firing porcelain cooker internal layer, and table form enamel skin within it;
B. according to the outer table skeleton of porcelain cooker internal layer by stainless steel materials punch forming stainless steel top layer;
C. after first porcelain cooker internal layer and stainless steel top layer being carried out preheating, again the aluminum or aluminum alloy of melting is poured in stainless steel top layer, then porcelain cooker internal layer is set in stainless steel top layer, and make to leave the suitable gap of middle heat conductive layer between the two, finally treat that aluminum or aluminum alloy cooled and solidified forms middle heat conductive layer;
D. the edge on stainless steel top layer is carried out flanging, make flanging and flanging fastening.
Wherein, described stainless steel top layer is first according to the second flanging that the outer table skeleton punching press of porcelain cooker internal layer forms main part and adapts with the flanging of porcelain cooker internal layer, after middle heat conductive layer casting complete, by crimping machine, outer field for stainless steel the second flanging is scrolled up formation flanging, and with flanging fastening.
The another kind of preparation method of porcelain composite cooker liner, comprises following processing step:
A. adopt china clay to form by a firing porcelain cooker internal layer, and table form enamel skin within it;
B. according to the outer table skeleton of porcelain cooker internal layer by shaping for aluminum or aluminum alloy plate stamping middle heat conductive layer;
C. according to the outer table skeleton of porcelain cooker internal layer by stainless steel materials punch forming stainless steel top layer;
D. middle heat conductive layer is sleeved on outside porcelain cooker internal layer, and then it is outer and the edge on stainless steel top layer is carried out flanging stainless steel top layer to be sleeved on middle heat conductive layer, makes flanging and flanging fastening;
E. by the bottom-heated of porcelain composite cooker liner to the rear cooling of fusing point or more of middle heat conductive layer.
The invention has the beneficial effects as follows: the porcelain cooker internal layer adopting china clay to fire forms enamel by the mode of glazing at interior table, enamel can have higher hardness on the one hand, what prevent use procedure from causing scratches, enamel surface smoother on the other hand, can antistick layer be formed, prevent cooking process food materials from burning the bottom being pasted onto inner bag.Middle heat conductive layer adopts aluminum or aluminum alloy compound, because Al and Alalloy has good heat-transfer effect, being compound in outside porcelain cooker internal layer makes heat can be delivered to each position rapidly, and be unlikely to concentrate and bottom, and Al and Alalloy relative inexpensiveness, and there is lower fusing point, be easy to processing.Stainless steel top layer has higher intensity and toughness; can play a very good protection to porcelain cooker internal layer; even if careless collision rift; also porcelain cooker internal layer can not be injured; if when there is crackle in porcelain cooker internal layer; well fixing effect also can be played in stainless steel top layer, prevents porcelain cooker internal layer from splitting completely.Because porcelain cooker internal layer, middle heat conductive layer and stainless steel top layer make employing different materials make, fixing for enabling this three better merge, present invention also offers two kinds of preparation methods, simple and the required making apparatus of technique is simple, be particularly useful for batch micro operations porcelain composite cooker liner, be by by after the aluminum or aluminum alloy melting of middle heat conductive layer, after the middle heat conductive layer of melting is solidified, just can be good at respectively at ceramic cooker internal layer and stainless steel top layer compound.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is cross section view of the present invention.
Detailed description of the invention
With reference to Fig. 1, porcelain composite cooker liner, adopt the porcelain cooker internal layer 1 that china clay is fired, the interior table of porcelain cooker internal layer 1 forms enamel skin, the appearance of porcelain cooker internal layer 1 is compounded with the middle heat conductive layer 2 adopting aluminum or aluminum alloy formable layer, middle heat conductive layer 2 appearance is compounded with stainless steel top layer 3, and the open-mouth of described porcelain cooker internal layer 1 is provided with flanging 4, and stainless steel top layer 3 extends to flanging 4 and by flanging 5 and flanging 4 fastening.The porcelain cooker internal layer 1 adopting china clay to fire forms enamel by the mode of glazing at interior table, enamel can have higher hardness on the one hand, what prevent use procedure from causing scratches, enamel surface smoother on the other hand, can antistick layer be formed, prevent cooking process food materials from burning the bottom being pasted onto inner bag.Middle heat conductive layer 2 adopts aluminum or aluminum alloy compound, because Al and Alalloy has good heat-transfer effect, being compound in outside porcelain cooker internal layer 1 makes heat can be delivered to each position rapidly, and be unlikely to concentrate and bottom, and Al and Alalloy relative inexpensiveness, and there is lower fusing point, be easy to processing.Stainless steel top layer 3 has higher intensity and toughness; can play a very good protection to porcelain cooker internal layer 1; even if careless collision rift; also porcelain cooker internal layer 1 can not be injured; if when there is crackle in porcelain cooker internal layer 1; well fixing effect also can be played in stainless steel top layer 3, prevents porcelain cooker internal layer 1 from splitting completely.
The present invention considers and prevents from using porcelain cooker internal layer 1 poor thermal conductivity and occurring that heat is only gathered in cooker bottom surface and causes the easy burn problem in bottom surface, add the porcelain cooker internal layer 1 that middle heat conductive layer 2 makes middle heat conductive layer 2 cover and can both obtain heat to solve the problem, but be not that whole porcelain cooker internal layer 1 all needs to obtain heat in actual use, middle heat conductive layer 2 covers the partial lateral wall of the outer bottom of porcelain cooker internal layer 1 and the porcelain cooker internal layer 1 near outer bottom for this reason.Because the heat conductivility of porcelain cooker internal layer 1 is poor, therefore it has good heat insulation effect, namely cook rear porcelain cooker internal layer 1 and can keep higher temperature within the longer time, but make user be difficult to grip like this, form hollow layer 6 between all the other lateral walls of porcelain cooker internal layer 1 and stainless steel top layer 3 for this reason, that is to say that middle heat conductive layer 2 does not extend to the top of cooker side, so the heat of porcelain cooker internal layer 1 can only be delivered to stainless steel top layer 3 by the flanging of porcelain cooker internal layer 14 and the flanging 5 on stainless steel top layer 3 and the bottom of porcelain cooker internal layer 1 and bottom outside face by middle heat conductive layer 2, and hollow layer 6 transferring heat is less, therefore stainless steel top layer 3 hollow layer 6 place temperature can be relatively low, be convenient to grip.
Below, the preparation method of porcelain composite cooker liner is described in detail.
The first adopts the method for cast to make, specifically comprise following processing step: first adopt china clay to make embryonic type, fired shaping porcelain cooker internal layer 1, in order to the effect making porcelain cooker internal layer 1 cannot not have stickyly, needs inner surface glazing at porcelain cooker internal layer 1 to form enamel layer.Simultaneously, according to the outer table skeleton of porcelain cooker internal layer 1 by stainless steel materials punch forming stainless steel top layer 3, need during punch forming stainless steel top layer 3 first according to the second flanging 7 that the outer table skeleton punching press of porcelain cooker internal layer 1 forms main part and adapts with the flanging 4 of porcelain cooker internal layer 1.Then, after first porcelain cooker internal layer 1 and stainless steel top layer 3 being carried out preheating, the porcelain cooker internal layer 1 that when such one side can prevent from pouring into a mould, the aluminum or aluminum alloy of melting directly contacts low temperature causes it to break, can prevent the aluminum or aluminum alloy quick solidification of melting from causing middle heat conductive layer 2 to produce defect on the other hand, again the aluminum or aluminum alloy of melting is poured in stainless steel top layer 3 after preheating, then porcelain cooker internal layer 1 is set in stainless steel top layer 3, and make to leave the suitable gap of middle heat conductive layer 2 between the two, can ensure that middle heat conductive layer 2 thickness is relatively uniform like this, certainly above-mentioned steps corresponding step can be completed by automation equipment, namely first porcelain cooker internal layer 1 and stainless steel top layer 3 clamping are carried out preheating on fixture, after the aluminum or aluminum alloy of melting is poured into stainless steel top layer 3, porcelain cooker internal layer 1 is inserted in stainless steel the top layer 3 and gap of both control by equipment automatically, finally treat that aluminum or aluminum alloy cooled and solidified forms middle heat conductive layer 2, material is thus formed middle heat conductive layer 2, because the aluminum or aluminum alloy of melting and the inner surface on porcelain cooker internal layer 1 outer surface and stainless steel top layer 3 can both well soak, therefore solidify rear middle heat conductive layer 2 to be just well combined with both.Finally, the edge on stainless steel top layer 3 is carried out flanging 5, make flanging 5 and flanging 4 fastening, flanging 5 one aspect can make three layers can better fix, but also can closed hollow layer 6, prevents dirt from entering.
The second be adopt shaping after again melting intermediate layer method make, the method be more prone to realize, do not need be equipped with smelting furnace.Specifically comprise following processing step: porcelain cooker internal layer 1 is identical with the first preparation method with the moulding process on stainless steel top layer 3, and middle heat conductive layer 2 is by shaping for aluminum or aluminum alloy plate stamping according to the outer table skeleton of porcelain cooker internal layer 1.Then, middle heat conductive layer 2 is sleeved on outside porcelain cooker internal layer 1, and then it is outer and the edge on stainless steel top layer 3 is carried out flanging 5 stainless steel top layer 3 to be sleeved on middle heat conductive layer 2, makes flanging 5 and flanging 4 fastening.Finally, by the bottom-heated of porcelain composite cooker liner to the rear cooling of fusing point or more of middle heat conductive layer 2, heating means generally can adopt the method for electromagnetic induction heating, although stainless steel also can be made in heating process also to heat simultaneously, but because stainless fusing point is more much higher than aluminum or aluminum alloy, therefore can not impact stainless steel top layer 3.