CN104605746A - Composite pot, manufacturing method and mold - Google Patents
Composite pot, manufacturing method and mold Download PDFInfo
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- CN104605746A CN104605746A CN201510007048.XA CN201510007048A CN104605746A CN 104605746 A CN104605746 A CN 104605746A CN 201510007048 A CN201510007048 A CN 201510007048A CN 104605746 A CN104605746 A CN 104605746A
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Abstract
The invention discloses a composite pot, a manufacturing method and a mold. The composite pot comprises a pot main body, the pot main body comprises an inner pot body and an outer pot body, the upper surface of the outer pot body is provided with one or more grooves, the cavity of each groove is large, the mouth of each groove is small, the lower surface of the inner pot body is provided with convex blocks matched with the grooves in number and shape, and the convex blocks are embedded in the grooves so that the inner pot body and the outer pot body can be tightly attached and fixedly connected. According to the composite pot, the convex blocks are embedded in the grooves so that the inner pot body and the outer pot body can be tightly attached and fixedly connected, the convex blocks and the grooves form a mortise joint structure, the connection strength of the inner pot body and the outer pot body is greatly enhanced, the whole pot has good structural stability and is not prone to deformation or delamination, the quality of the pot is improved, the service life of the pot is prolonged, and the pot has good application prospects.
Description
Technical field
The invention belongs to pan technical field, be specifically related to a kind of composite pot tool, also relate to a kind of preparation method of composite pot tool and the mould for the preparation of this composite pot tool simultaneously.
Background technology
Along with the progress of expanding economy and society, people more and more pay attention to quality of the life and healthy, and the quality of the kitchen cooker closely bound up with food hygiene, also cause the attention of people gradually.In diversified kitchen cooker, pan directly contacts with entrance food, also uses the most general, therefore particularly receive the concern of people.
At present, composite pan has become the development trend of pan, the stainless-steel pan as composite base have heat transfer evenly, heating is fast, cook the advantages such as effective.The stainless-steel pan of composite pan bottom sold in the market, the intermediate heat conducting shell of its composite pan bottom (stainless steel-aluminium-stainless steel/stainless iron) mostly is aluminium, interlayer adopts hot pressing soldering to form usually, because the difference of thermal expansion coefficients between aluminium and stainless steel is comparatively large, easily to deform in use procedure, the phenomenon such as delamination.In addition, the thermal stress caused due to thermal expansion coefficient difference also can cause pan heat transfer uneven, reduces cooking effect.
The method of attachment of composite material cooking vessel inside and outside layer, there is the method adopting laminating, the easy layering in the bottom of a pan of this method and affect result of use, the method improved has the bonding method of thermosetting etc. of riveting, convex-concave structure, but its convex-concave hole or groove often need to adopt machining process to carry out, and adhesive strength also realizes often by relative sliding district of bonding interface place, and cost is higher, bond strength is also not bery desirable, cannot meet the requirement of use.
Summary of the invention
The object of this invention is to provide a kind of composite pot tool, solve bond strength between existing composite pan ectonexine not high, easily deform, the problem of the phenomenon such as delamination.
Second object of the present invention is to provide a kind of preparation method of composite pot tool.
3rd object of the present invention is to provide a kind of mould for the preparation of composite pot tool.
In order to realize above object, the technical solution adopted in the present invention is: a kind of composite pot tool, comprise a pot body, described pot body comprises outer pot body and internal layer pot body, the bottom of a pan upper surface of described outer pot body is provided with more than one chamber groove young greatly, and internal layer pot body lower surface has the projection with described number of recesses and shape adaptation, and described projection embeds in groove, form mortise structure, make internal layer pot body fit tightly with outer pot body and be fixedly connected with.
Described groove notch shape is rectangular, square, annular or circular.
Described groove is dovetail groove.
Described groove is concentric ring-shaped, radial or parallel the distribution of line shape at the bottom of a pan upper surface of outer pot body.
Described internal layer pot body is magnesium alloy, and outer pot body is aluminium alloy.
The preparation method of described composite pot tool, is adopt the method for composite liquefied die forging successively to mold outer pot body and internal layer pot body, forms pot body, then through following process and differential arc oxidation process, obtain composite pot tool product.
The technical scheme of described composite liquefied die forging is: first adopt the method for liquid forging to be shaped the outer pot body of upper base surface with the little dovetail groove in the mouth large end, then this dovetail groove is made to become chamber dovetail groove young greatly by pyroplastic deformation, adopt the method for liquid forging to mold internal layer pot body again in outer pot body, thus form the compound pot body with mortise structure.
A preparation method for above-mentioned composite pot tool, comprises the following steps:
1) delivery tool, injects outer pot material melt in concave die cavity, and make material melt be full of die cavity the first punch press-in die cavity, pressurize cooling makes material melt solidify, and takes out the first punch, obtains the outer pot body that upper surface has trapezoidal groove;
2) the second punch pressure is used to touch step 1) trapezoidal groove of the outer pot body of gained, make the opening's edge of trapezoidal groove produce compression and form dovetail groove, obtain the outer pot body that upper surface has dovetail groove;
3) internal layer pot material melt is injected in the inside to concave die cavity ectonexine pot body, and make material melt be full of die cavity the second punch press-in die cavity, pressurize cooling makes material melt solidify and obtains internal layer pot body, the demoulding, obtains described composite pot tool.
Described mould is preheated to 300 ~ 500 DEG C before using.
Step 3) in, during the second punch press-in die cavity, first push down the opening's edge of outer pot body with gland, then make to make material melt be full of die cavity in the outer pot body in the second punch press-in die cavity.
For the preparation of a mould for above-mentioned composite pot tool, comprise the first punch, the second punch and die, described die is provided with die cavity; The die head top of described first punch has more than one boss, the side of described boss has draw taper, boss side surfaces is provided with skewed slot with die head top end face phase join, first punch is used for coordinating with the die cavity grafting of die, makes die head and die cavity form closed mould cavity for making outer pot body formed; The die head top of described second punch is plane, and the second punch is used for coordinating with the die cavity grafting of die, makes die head and outer pot body form closed mould cavity for making internal layer pot body formed.
The die head rear portion of described second punch is provided with ring-shaped step, and the sliding supporting gland being provided with ring-type between ring-shaped step and die head, gland makes die cavity seal for the opening's edge supporting outer pot body.Second punch is used for coordinating with the die cavity grafting of die, makes die head, gland and outer pot body form closed mould cavity for making internal layer pot body be shaped.
Described ring-shaped step is provided with bolt hole, and in bolt hole, sliding joining is provided with bolt, and described bolt is fixedly connected with gland by screw thread; Described ring-shaped step is provided with blind hole, in blind hole, is placed with spring;
Bottom at die cavity on described die is provided with through hole, and in through hole, sliding joining is provided with backing-out punch.
The draw taper of described boss side surfaces is 1 ° ~ 5 °.The quantity of boss, contour shape and the bottom of a pan dovetail groove being distributed in outer pot body adapt.
The inner surface configuration of the die shape of the first punch and the outer pot body of composite pot tool adapts; The die shape of the second punch and the inner surface configuration of composite pot tool internal layer pot body adapt.
Composite pot tool of the present invention, pot body comprises internal layer pot body and outer pot body, outer pot body upper surface is provided with more than one chamber groove young greatly, internal layer pot body lower surface has the projection with described number of recesses and shape adaptation, projection embeds in groove and makes internal layer pot body fit tightly with outer pot body and be fixedly connected with, projection and groove form mortise structure, substantially increase the bonding strength of internal layer pot body and outer pot body, pan entirety has good structural stability, not yielding and delamination, improve quality and the service life of pan, have a good application prospect.
Further, described groove is dovetail groove, and dovetail groove forms dovetail structure with corresponding projection, makes the connection of ectonexine pot body more firm.The notch of groove is concentric ring-shaped or radial distribution at outer pot body upper surface, namely groove is revolving body or notch is multilayer concentric circle or radial uniform at outer pot body upper surface, mortise structure between ectonexine pot body is uniformly distributed, improves bonding strength further.Internal layer pot body is magnesium alloy, and outer pot body is aluminium alloy, and both coefficients of expansion are substantially identical, avoids the heat transfer that the thermal stress that causes because of thermal expansion coefficient difference causes uneven, can not deform in use procedure, delamination.
Mould for the preparation of composite pot tool of the present invention, comprise the first punch, the second punch and die, the combination of the first punch and die is assembled and is used for the shaping of outer pot body, the combination of the second punch and die is assembled and is used for the shaping of internal layer pot body, namely this set of mould can complete the shaping of composite pot tool, gained composite pot tool Stability Analysis of Structures, has good quality and longer service life; The use of this mould, decreases production process, shortens the manufacturing cycle, improves production efficiency, obviously reduces the input of equipment and mold cost, reduces the production cost of composite pot tool.
The preparation method of composite pot tool of the present invention, first adopt the method for liquid forging to mold outer pot body with dovetail groove, then dovetail groove is made to become dovetail groove by pyroplastic deformation, the method of liquid forging is adopted to mold internal layer pot body again in outer pot body, thus the compound pot body formed with mortise structure, liquid forging makes to realize metallurgical binding between ectonexine pot material, further increases the bond strength between ectonexine pot body; The shaping alloy grain of liquid forging is thinner, does not have pore, the defect such as loose, and layer structure evenly and matter is hard, has higher decay resistance; The shaping of mortise structure combines with liquid forging by this preparation method, and method is novel unique, and technique is simple, and production efficiency is high, easy to operate, is easy to Automated condtrol, and cost is low, is applicable to large-scale industrial production.
Accompanying drawing explanation
Fig. 1 is the structural representation of the composite pot tool of embodiment 1;
Fig. 2 is the enlarged drawing at A place in Fig. 1;
Fig. 3 is the top view of Fig. 1;
Fig. 4 is the structural representation of die in the mould of embodiment 2;
Fig. 5 is the structural representation of the first punch in the mould of embodiment 2;
Fig. 6 is the enlarged drawing at B place in Fig. 5;
Fig. 7 is the assembling schematic diagram of die and the first punch in embodiment 3;
Fig. 8 is the structural representation of the second punch in the mould of embodiment 2;
Fig. 9 is the assembling schematic diagram of die and the second punch in embodiment 3;
Figure 10 is the structural representation of the composite pot tool of embodiment 4;
Figure 11 is the top view of Figure 10 ectomesoderm pot body;
Figure 12 is the top view of the outer pot body of the composite pot tool of embodiment 7;
Figure 13 is the top view of the outer pot body of the composite pot tool of embodiment 8.
Detailed description of the invention
Below in conjunction with detailed description of the invention, the present invention is further illustrated.
In detailed description of the invention, internal layer pot body magnesium alloy used is magnesium base composite material, comprise the component of following mass percentage: Zn 1.0% ~ 3.0%, Zr 0.5% ~ 1.0%, Nd 1.0% ~ 8.0%, Gd 0.5% ~ 1.8%, Cu 0.1%, Ni0.01%, particle reinforced material 5% ~ 15%, surplus is magnesium and inevitable impurity.Outer pot body aluminium alloy used is aluminium alloy ZL305, and comprise the component of following mass percentage: Mg 7.5% ~ 9.0%, Zn 1.0% ~ 1.5%, Ti 0.1% ~ 0.2%, Be 0.03% ~ 0.1%, surplus is aluminium and inevitable impurity.
Embodiment 1
The composite pot tool of the present embodiment, as shown in Figure 1, 2, 3, comprise a pot body, pot body is disc, flat, the mouth large end is little and the frying pan form that opening's edge is turned up, described pot body comprises outer pot body 1 and internal layer pot body 2, the bottom of a pan upper surface of described outer pot body 1 is provided with three (can increase and decrease according to pot body size) dovetail grooves 3, and dovetail groove 3 is the center of circle at the bottom of a pan upper surface of outer pot body 1 with bottom centre is three layers of concentric ring-shaped distribution; Internal layer pot body 2 lower surface has the projection 4 with described dovetail groove 3 quantity, distribution and shape adaptation, and described projection 4 correspondence embeds in dovetail groove 3, makes internal layer pot body 2 fit tightly with outer pot body 1 and be fixedly connected with, formation mortise structure.The sidewall of internal layer pot body 2 is lower than the sidewall of outer pot body 1, and the junction of turn up opening's edge and the sidewall of outer pot body 1 is provided with the side for making the outer of internal layer pot body 2 support, and internal layer pot body 2 is seamlessly transitted with the joining place of outer pot body 1.The opening's edge place of turning up of pot body 1 is provided with ears (not shown in FIG.).
In the present embodiment, the material of internal layer pot body is magnesium alloy, and the material of outer pot body is aluminium alloy.
Embodiment 2
The mould for the preparation of the composite pot tool described in embodiment 1 of the present embodiment, comprises the first punch, the second punch and die, and as shown in Figure 4, described die 12 is provided with die cavity 14, and the shape of die cavity 14 and the profile of composite pot tool adapt; Described die 12 is provided with through hole in the bottom of die cavity 14, and in through hole, sliding joining is provided with backing-out punch 13.
As illustrated in Figures 5 and 6, die head 15 top of described first punch 11 has three (can increase and decrease according to pot body dovetail groove quantity) boss 16, this boss 16 adapts with the dovetail groove of composite pot tool ectomesoderm pot body upper surface, the table top of single boss is circular, boss 16 with end face center, die head 15 top for the center of circle is the distributions of three layers of concentric ring-shaped; The side of described boss 16 has the draw taper of 5 °, boss 16 side is provided with skewed slot 17 with die head 15 top end face phase join, first punch 1 is for coordinating with die 12, backing-out punch 13, and as shown in Figure 7, its gap forms the closed mould cavity for making outer pot body formed.
As shown in Figure 8, die head 19 top of described second punch 18 is plane, die head 19 rear portion of the second punch 18 is provided with ring-shaped step 20, the gland 21 of ring-type is arranged with between ring-shaped step 20 and die head 19, described gland 21 is inclined-plane near one end of die head 19, the opening's edge of this inclined-plane and composite pot tool ectomesoderm pot body adapts, and for the opening's edge supporting outer pot body, die cavity is sealed; Described ring-shaped step 20 is provided with bolt hole, and in bolt hole, sliding joining is provided with bolt 22, and described bolt 22 is fixedly connected with gland 21 by screw thread; Described ring-shaped step 20 is provided with blind hole 23, in blind hole 23, is placed with spring 24; Second punch 18, for coordinating with die cavity 14 grafting of die 12, as shown in Figure 9, makes die head 19, gland 21, backing-out punch 13 and outer pot body form closed mould cavity for making internal layer pot body formed.
Embodiment 3
The present embodiment is the preparation method of the composite pot tool described in embodiment 1, adopts the mould described in embodiment 2.The preparation method of composite pot tool specifically comprises the following steps:
1) mould is arranged on forcing press;
2) by component prescription, melting is carried out to magnesium base composite material and aluminium alloy respectively, respectively obtained internal layer pot material melt and outer pot material melt, stand for standby use;
3) shaping dies is preheated to 300 DEG C;
4) outer pot material melt (aluminium alloy melt) is quantitatively injected concave die cavity, and the first punch is placed on the operating position of forcing press, forcing press is descending, by the first punch press-in die cavity, make material melt reverse flow, be full of the die cavity (Fig. 7) that the die head of the first punch and die cavity are formed, pressurize cooling makes material melt solidifying and setting, forcing press drives the first punch backhaul, obtains the outer pot body that upper surface has trapezoidal groove;
5) the second punch is changed to operating position;
6) forcing press is descending, the die head of the second punch pressure is made to touch step 4) trapezoidal groove of the outer pot body of gained, make the opening's edge of trapezoidal groove produce compression, trapezoidal groove is deformed into dovetail groove, forcing press drives the second punch backhaul, obtains the outer pot body that upper surface has dovetail groove;
7) internal quantitation to die grooving ectonexine pot body injects internal layer pot material melt (magnesium base composite material melt), forcing press is descending, by the second punch press-in grooving, the opening's edge that first gland pushes down outer pot body seals, second punch continuation is descending (in the process, bolt slides in the bolt hole of the second punch, spring stress compresses, make to produce closing force between the opening's edge of the inclined-plane of gland and outer pot body, prevent melt from revealing), make material melt reverse flow, be full of the die head of the second punch, the die cavity that gland and outer pot body are formed, pressurize cooling makes material melt solidifying and setting obtain internal layer pot body,
8) forcing press drives the second punch and makes gland backhaul together by bolt;
9) forcing press liftout tank drives the pot body that backing-out punch is about to be shaped to eject concave die cavity, obtains described composite pot tool;
10) liftout tank backhaul, backing-out punch also slide downward reset under self gravitation effect, gains former operating position by the first punch simultaneously;
11) the above-mentioned 4th is repeated) step is to the 10th) process of step, re-start the shaping of next composite pot tool.
12) by step 9) the composite pot tool of shaping carry out a small amount of follow-up machining and namely surface by micro-arc oxidation process obtains composite pot tool product.
Embodiment 4
The composite pot tool of the present embodiment, as shown in Figure 10,11, comprise a pot body, pot body is disc, flat, the mouth large end is little and the frying pan form that opening's edge is turned up, and described pot body comprises internal layer pot body 16 and outer pot body 15, and described outer pot body 15 upper surface is provided with 24 dovetail grooves 17, the notch of single dovetail groove is rectangle, 24 dovetail grooves 17 at outer pot body 15 upper surface with bottom of pot body center for the center of circle is two-layer radial distribution, internal layer be eight uniform, skin be 16 uniform; Internal layer pot body 16 lower surface has the projection 18 with described dovetail groove 17 quantity, distribution and shape adaptation, and described projection 18 correspondence embeds in dovetail groove 17, makes internal layer pot body 16 fit tightly with outer pot body 15 and be fixedly connected with.The sidewall of internal layer pot body 16 is lower than the sidewall of outer pot body 15, and the junction of turn up opening's edge and the sidewall of outer pot body 15 is provided with the side for making the outer of internal layer pot body 16 support, and internal layer pot body 16 is seamlessly transitted with the joining place of outer pot body 15.
In the present embodiment, the material of internal layer pot body is magnesium alloy, and the material of outer pot body is aluminium alloy.
Embodiment 5
The mould for the preparation of the composite pot tool described in embodiment 4 of the present embodiment, difference from Example 2 is: the die head top of described first punch has 24 boss, the dovetail groove of this boss and composite pot tool ectomesoderm pot body upper surface adapts, the table top of single boss is rectangle, the table top of 24 boss with end face center, die head top for the center of circle is two-layer radial distribution, internal layer be eight uniform, skin be 16 uniform.
Embodiment 6
The present embodiment is the preparation method of the composite pot tool described in embodiment 4, and adopt the mould described in embodiment 5, concrete operation step is with embodiment 3.
Embodiment 7
The composite pot tool of the present embodiment, as shown in figure 12, is with the difference of embodiment 4: dovetail groove 3 notch of the bottom of a pan upper surface of outer pot body is rectangle, and dovetail groove 3 is parallel linear arrangement at outer pot body upper surface.
Embodiment 8
The composite pot tool of the present embodiment, as shown in figure 13, is with the difference of embodiment 4: dovetail groove 3 notch of the bottom of a pan upper surface of outer pot body for circular, dovetail groove 3 at outer pot body upper surface with bottom of pot body center for the center of circle be that multilayer ring-type is arranged.
In other embodiments of the invention, for the preparation of in the mould of composite pot tool, the cavity bottom of die can not arrange through hole and backing-out punch; Whether this part-structure is arranged can select to arrange according to demoulding complexity.
Claims (10)
1. a composite pot tool, comprise a pot body, it is characterized in that: described pot body comprises outer pot body and internal layer pot body, the bottom of a pan upper surface of described outer pot body is provided with more than one chamber groove young greatly, internal layer pot body lower surface has the projection with described number of recesses and shape adaptation, described projection embeds in groove, forms mortise structure, makes internal layer pot body fit tightly with outer pot body and be fixedly connected with.
2. composite pot tool according to claim 1, is characterized in that: described groove is dovetail groove.
3. composite pot tool according to claim 2, is characterized in that: described groove is concentric ring-shaped, radial or parallel distribution at the bottom of a pan upper surface of outer pot body.
4. the composite pot tool according to claim 1,2 or 3, is characterized in that: described internal layer pot body is magnesium alloy, and outer pot body is aluminium alloy.
5. a preparation method for composite pot tool as claimed in claim 1, is characterized in that: comprise the following steps:
1) delivery tool, injects outer pot material melt in concave die cavity, and make material melt be full of die cavity the first punch press-in die cavity, pressurize cooling makes material melt solidify, and takes out the first punch, obtains the outer pot body that upper surface has trapezoidal groove;
2) the second punch pressure is used to touch step 1) trapezoidal groove of the outer pot body of gained, make the opening's edge of trapezoidal groove produce compression and form dovetail groove, obtain the outer pot body that upper surface has dovetail groove;
3) internal layer pot material melt is injected in the inside to concave die cavity ectonexine pot body, and make material melt be full of die cavity the second punch press-in die cavity, pressurize cooling makes material melt solidify and obtains internal layer pot body, the demoulding, obtains described composite pot tool.
6. the preparation method of composite pot tool according to claim 5, is characterized in that: described mould is preheated to 300 ~ 500 DEG C before using.
7. the preparation method of composite pot tool according to claim 5, it is characterized in that: step 3) in, during the second punch press-in concave die cavity, first push down the opening's edge of outer pot body with gland, then make to make material melt be full of die cavity in the outer pot body in the second punch press-in die cavity.
8. for the preparation of a mould for composite pot tool as claimed in claim 1, it is characterized in that: comprise the first punch, the second punch and die, described die is provided with die cavity; The die head top of described first punch has more than one boss, the side of described boss has draw taper, boss side surfaces is provided with skewed slot with die head top end face phase join, first punch is used for coordinating with the die cavity grafting of die, makes die head and die cavity form sealing die cavity for making outer pot body formed; The die head top of described second punch is plane, and the second punch is used for coordinating with the die cavity grafting of die, makes die head and outer pot body form sealing die cavity for making internal layer pot body formed.
9. mould according to claim 8, is characterized in that: the die head rear portion of described second punch is provided with ring-shaped step, and the sliding supporting gland being provided with ring-type between ring-shaped step and die head, gland makes die cavity seal for the opening's edge supporting outer pot body.
10. mould according to claim 8 or claim 9, is characterized in that: the bottom at die cavity on described die is provided with through hole, and in through hole, sliding joining is provided with backing-out punch.
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