CN208712830U - A kind of water cooling composite construction of die casting mould core - Google Patents
A kind of water cooling composite construction of die casting mould core Download PDFInfo
- Publication number
- CN208712830U CN208712830U CN201821351606.XU CN201821351606U CN208712830U CN 208712830 U CN208712830 U CN 208712830U CN 201821351606 U CN201821351606 U CN 201821351606U CN 208712830 U CN208712830 U CN 208712830U
- Authority
- CN
- China
- Prior art keywords
- layer
- heat
- cooling
- die casting
- composite construction
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
A kind of water cooling composite construction of die casting mould core provided by the utility model includes core model and cooling system, the core model is equipped with heat-conducting layer, refractory layer, inner cavity and opening, the refractory layer is set to the outer surface of the heat-conducting layer, it closes the inner end of the core model, inner cavity and the external world described in the opening connection, the cooling system is equipped with cooling tube, water inlet line and outlet conduit, the cooling tube is axially mounted in the inner cavity, the inner end of the cooling tube offers inner spout, the water inlet line is formed in the cooling tube, the outlet conduit is formed between the cooling tube and the heat-conducting layer of the core model, said inner tube mouth is connected to the water inlet line and the outlet conduit.To which it is for the heat dissipation problem of elongated package core model, effective temperature-reducing is carried out, temperature control performance, die life, product quality and production efficiency are improved.
Description
Technical field
The utility model relates to die casting mold fields, specifically, being a kind of water cooling composite construction of die casting mould core.
Background technique
The alloy materials components such as many auto parts and components, electronic product part all use pressure casting method to produce.It is closed in aluminium
During the Die Casting of the alloy materials such as gold, magnesium alloy, die casting temperature is influence product quality and production efficiency one
A key factor, especially local high temperature or low temperature will lead to die life reduction, and can seriously affect formed product
And quality.During practical Die Casting, due to the particularity of complicated production environment and die cast metal, mold each region
Temperature be extremely difficult to absolute equilibrium, and mold is easy to produce greatly heat and hands over adaptability to changes, because it is needed in a short time
It to bear repeatedly shock heating and be quenched nearly 400 DEG C of temperature difference.It is pressed simultaneously as metal often need to pour into mold in liquid
It casts, and require cool to certain temperature to be opened pickup, therefore the cooling velocity of mold directly affects the effect of Die Casting
Rate.
Currently, die casting is all made of various cooling systems, mold is taken out of by molten metal bring heat, make mold temperature
Degree reaches scheduled range, to guarantee that mold works normally in production.The cooling system of common use mainly has: air-cooled,
Heat pipe cooling, die heater cooling, water circulating cooling etc..Wherein, water circulating cooling method has many advantages, such as simple, easy, is existing
One of most widely used mode in die casting cooling system.The working principle of water circulating cooling method is to communicate phase using straight line
The mode passed through is formed into a loop, by importing the biggish water of specific heat capacity to mould inside after circuit cycle, by mould inside heat
It takes out of, accelerate its temperature and be down to working range.Such as Patent No. CN 205086262U provides a kind of foam forming machine mold
Hydrologic cycle cooling system, realize the circulating cooling and recycling of cooling water, but in the patent system components it is more,
There is a problem of that higher cost, heat dissipation effect are poor.
In actual production, structure is complicated for many parts, while by many-sided limitation such as mould structure, water circulating cooling
Method can not all play effective heat spreading function to all mould structures, especially for the cooling of elongated mold cores structure
Effect is poor.For example, to the simple part for containing closed pore structures comprising one end shown in Fig. 1, in order to produce the envelope among part
Closed pore, matched conventional core mold structure is as shown in Fig. 2, it is apparent that the core mold structure of the part is elongated and core model
Front end wrapped up by molten metal, which belongs to typical elongated package core.In general, elongated package core model refers to one end by metal
Liquid surrounds, its diameter is less than or equal to the metallic core of 15mm, draw ratio more than or equal to 1, before the core model in press casting procedure in Fig. 2
End is fully wrapped around by molten metal, heat accumulation regions is belonged in mold temperature field, it should reinforce radiating, otherwise this core model is in life
Temperature remains on higher temperature in production, forms thermal center, and casting is also easy to produce shrinkage porosity defect of contraction cavity at this position, seriously affects
Casting quality and die life.However, traditional only constitute several letters using single water circulating cooling method in big mold block
Single loop, does not go deep into type core inner generally, and heat dissipation effect is poor.And the thermal conductivity of mould steel is low, and (m DEG C) of only 40W/ is left
The right side, and it is limited to core mold structure, it is difficult to quickly spread out of by the heat of package core print part, partial temperature control can not be carried out, with
It is difficult to reach balanced to core model each region temperature.In order to solve the problems, such as the hardly possible that radiates in elongated package core model production, the patent No.
Patent of invention for 101920329 B of CN provides a kind of machining manufacture of die casting mould core, by manufacturing two-layer compound
Material core model, wherein inner layer material is higher heat-conductivity materials, and heat is passed in the mold of rear by end or type core end is empty
It is cold.Cost is relatively low for this method, can improve core model heat dissipation to a certain extent, and there is also deficiencies, although it uses high heat conductance material
Material is used as inner layer material, accelerates the core model front end heat transfer wrapped up by molten metal to entire core model, but entire core model is into one
The heat dissipation of step is limited to air-cooled, and end heat dissipation area is small, it is difficult to achieve the purpose that rapid cooling.
Utility model content
The main purpose of the utility model is to provide a kind of water cooling composite constructions of die casting mould core, for elongated
The heat dissipation problem of core model is wrapped up, effective temperature-reducing is carried out, improves temperature control performance, die life, product quality and production efficiency.
The another object of the utility model is to provide a kind of water cooling composite construction of die casting mould core, passes through water cooling
Replace end air-cooled, and replace mould steel using high-thermal conductive metal, forms the water cooling composite junction of double-layer composite material core model
Structure, in order to improve core model radiating rate.
To achieve the above objectives, the technical solution adopted in the utility model are as follows: a kind of water cooling of die casting mould core is compound
Structure includes core model and cooling system, and the core model is equipped with heat-conducting layer, refractory layer, inner cavity and opening, and the refractory layer is set
It is placed in the outer surface of the heat-conducting layer, the inner end of the core model is closed, inner cavity and the external world described in the opening connection, the cooling
System is equipped with cooling tube, water inlet line and outlet conduit, and the cooling tube is axially mounted in the inner cavity, the cooling tube
Inner end offer inner spout, the water inlet line is formed in the cooling tube, and the outlet conduit is formed in the cooling
Between pipe and the heat-conducting layer of the core model, said inner tube mouth is connected to the water inlet line and the outlet conduit.
An embodiment according to the present utility model, the outlet conduit annular are set to the periphery of the cooling tube.
An embodiment according to the present utility model, the cooling system are further provided with fastener, and the fastener is located at
In the opening, the fastener connects the cooling tube and the core model, and the fastener is equipped with inlet opening and apopore, institute
The periphery that apopore annular is located at the inlet opening is stated, the inlet opening is connected to the water inlet line, the apopore compartment of terrain
It is connected to the outlet conduit.
An embodiment according to the present utility model, the cooling system further comprise water supply hose and delivery hose,
The water supply hose is connected to the water inlet line, and the delivery hose is connected to the outlet conduit.
An embodiment according to the present utility model, the refractory layer is coated on the outer surface of the heat-conducting layer, described thermally conductive
Layer is fine copper tube layer, and the refractory layer is mold steel layer or heat-resisting steel layer.
An embodiment according to the present utility model, the refractory layer with a thickness of 0.2~3mm.
An embodiment according to the present utility model, the cooling tube are stainless steel tube.
An embodiment according to the present utility model, the heat-conducting layer are that 100 DEG C~600 DEG C of thermal conductivity is 393~366W/
The fine copper tube layer of (m DEG C), the refractory layer is H13 mold steel layer or 100 DEG C~600 DEG C of thermal conductivity is 15~32W/ (m
DEG C) heat-resisting steel layer.
Detailed description of the invention
Fig. 1 is a kind of design of part schematic diagram that blind hole is contained in one end.
Fig. 2 is the schematic diagram for producing the conventional core mold that Fig. 1 matches with long hole design of part.
Fig. 3 A is the water cooling composite construction schematic diagram of the die casting mould core of a preferred embodiment according to the present utility model.
Fig. 3 B is cross-sectional view of Fig. 3 A according to the present utility model along line B-B.
Specific embodiment
It is described below for disclosing the utility model so that those skilled in the art can be realized the utility model.It retouches below
Preferred embodiment in stating is only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
It is a kind of water cooling composite construction 2 of die casting mould core, the die casting mould core as shown in Fig. 3 A to Fig. 3 B
Water cooling composite construction 2 include core model 10 and cooling system 20, the core model 10 be equipped with heat-conducting layer 11, refractory layer 12, inner cavity
13 and opening 14, the refractory layer 12 be set to the outer surface of the heat-conducting layer 11, the inner end closing of the core model 10 is described
Be open inner cavity 13 and the external world described in 14 connection, and the cooling system 20 is equipped with cooling tube 21, water inlet line 23 and outlet conduit
24, the cooling tube 21 is axially mounted in the inner cavity 13, and the inner end of the cooling tube 21 offers inner spout 210, described
Water inlet line 211 is formed in the cooling tube 21, and the outlet conduit 212 is formed in the cooling tube 21 and the core model
Between heat-conducting layer 11, said inner tube mouth 210 is connected to the water inlet line 211 and the outlet conduit 212, obtain so that cooling water from
The water inlet line 211 enters in the inner cavity 13 of the core model, then through 14 outflow of the outlet conduit 212 and the opening.From
And it is for the heat dissipation problem of elongated package core model 10, carries out effective temperature-reducing, improves temperature control performance, die life, product quality
And production efficiency.
212 annular of outlet conduit is set to the periphery of the cooling tube 21, effectively takes away the heat-conducting layer 11 and conducts
Heat.
Wherein, the cooling system 20 is further provided with fastener 25, and the fastener 25 is located in the opening 14, institute
It states fastener 25 and connects the cooling tube 21 and the core model 10, the fastener 25 is equipped with inlet opening 251 and apopore 252,
252 annular of apopore is located at the periphery of the inlet opening 251, and the inlet opening 251 is connected to the water inlet line 211, institute
It states 252 compartment of terrain of apopore and is connected to the outlet conduit 212.
Wherein, the fastener 25 is eye bolt, and the fastener 25 is threadedly coupled the cooling tube 21 and institute respectively
State core model 10.
The cooling system 20 further comprises water supply hose 23 and delivery hose 24, and the water supply hose 23 passes through institute
It states fastener 25 and is connected to the water inlet line 211, the delivery hose 24 is connected to the outlet conduit by the fastener 25
212。
The refractory layer 12 is coated on the outer surface of the heat-conducting layer 11, and the heat-conducting layer 11 is fine copper tube layer, described resistance to
Thermosphere 12 is mold steel layer or heat-resisting steel layer.It sheds to which heat is able to quickly transmit by the internal heat-conducting layer 11, and
And external refractory layer 12 is able to resistance molten metal and washes away.
Wherein, the cooling tube 21 is stainless steel tube, is fixed on the bolt with inlet opening 251 and the apopore 252
Centre, 25 external screw thread of fastener are connected and fixed with the core model 10.
Wherein, the refractory layer 12 with a thickness of 0.2~3mm.
The core model 10 is double-layer composite material framework, and internal layer is the heat-conducting layer 11, by an end seal of high heat conductance
The fine copper tube layer closed is the fine copper of 393~366W/ (m DEG C) by 100 DEG C~600 DEG C of thermal conductivities, and fine copper stick or copper pipe are done
At hollow structure.Cladding material is H13 mould steel or 100 DEG C~600 DEG C of thermal conductivity is the heat-resisting of 15~32W/ (m DEG C)
Steel.
The core model 10 using inlaying process or flame heat spray method, laser cladding the heat-conducting layer 11 appearance bread
Wrap up in the refractory layer 12.Wherein, inlaying process is one mould steel closed at one end of processing or heat-resisting steel bushing, is covered outside pure copper tube
And it is fitted close with copper pipe.Flame heat spray method or the process of laser cladding are as follows: first to machined to specified size
Inner core pure copper tube is pre-processed, its surface is made to keep certain cleaning and roughness, is then used flame heat spray method or is swashed
Light cladding method, selects suitable technological parameter, makes that H13 mould steel or other heat resisting steel uniformly spray or cladding is to by pre- place
On the copper pipe of reason, finally outer layer H13 mould steel or other heat-resisting steel layer are machined to specified size and check surface
Handle quality.
In use, heat is from highest 10 front end of package core model of temperature, the refractory layer 12 and internal layer high fever through outer layer
The heat-conducting layer 11 of conductance, quick transfer spreading to the entire core model 10.Meanwhile cooling water passes through the water supply hose 23
The water inlet line 211 inside core model 10 is flowed into, the inner spout 210 through the cooling tube 21 flow to the outlet conduit outward
212, then flowed out through the delivery hose 24, the heat fast speed belt of the heat-conducting layer 11 is gone out mold, makes novel double-layer composite wood
The heat dissipation effect of material core model 10 is further strengthened.Meanwhile by cooling water and flow control, realize to the core model 10 into
Row efficiently, be quickly cooled down, so that 10 each region temperature of core model is reached balanced, solve elongated package core model 10 radiate it is difficult
Problem, while can guarantee the core model 10 in the case where molten metal washes away not by quick corrosion again.To the die casting mould core
Water cooling composite construction 2 has the advantages that rapid heat dissipation, structure be simple, at low cost, high production efficiency, good product quality.
The water cooling composite construction 2 of the die casting mould core is suitable for producing the design of part 1 of Fig. 1, part knot shown in Fig. 1
Structure 1 is elongated hole, and closing hole length is L1, diameter d1, draw ratio: L1/d1 >=1, and d1≤15mm.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model
Protection scope defined by appended claims and its equivalent.
Claims (10)
1. a kind of water cooling composite construction of die casting mould core characterized by comprising
Core model, the core model are equipped with heat-conducting layer, refractory layer, inner cavity and opening, and the refractory layer is set to the heat-conducting layer
The inner end of outer surface, the core model is closed, inner cavity and the external world described in the opening connection；And
Cooling system, the cooling system are equipped with cooling tube, water inlet line and outlet conduit, and the cooling tube is axially mounted to
In the inner cavity, the inner end of the cooling tube offers inner spout, and the water inlet line is formed in the cooling tube, it is described go out
Waterpipe is formed between the cooling tube and the heat-conducting layer of the core model, and said inner tube mouth is connected to the water inlet line and described
Outlet conduit.
2. the water cooling composite construction of die casting mould core according to claim 1, which is characterized in that the outlet conduit ring
Shape is set to the periphery of the cooling tube.
3. the water cooling composite construction of die casting mould core according to claim 2, which is characterized in that the cooling system into
One step is equipped with fastener, and the fastener is located in the opening, and the fastener connects the cooling tube and the core model, institute
Fastener is stated equipped with inlet opening and apopore, the apopore annular is located at the periphery of the inlet opening, the inlet opening connection
The water inlet line, the apopore compartment of terrain are connected to the outlet conduit.
4. the water cooling composite construction of die casting mould core according to claim 3, which is characterized in that the cooling system into
One step includes water supply hose and delivery hose, and the water supply hose is connected to the water inlet line, and the delivery hose is connected to institute
State outlet conduit.
5. the water cooling composite construction of die casting mould core according to claim 1, which is characterized in that the refractory layer cladding
In the outer surface of the heat-conducting layer, the heat-conducting layer is fine copper tube layer, and the refractory layer is mold steel layer or heat-resisting steel layer.
6. the water cooling composite construction of die casting mould core according to claim 5, which is characterized in that the thickness of the refractory layer
Degree is 0.2~3mm.
7. the water cooling composite construction of die casting mould core according to claim 4, which is characterized in that the refractory layer cladding
In the outer surface of the heat-conducting layer, the heat-conducting layer is fine copper tube layer, and the refractory layer is mold steel layer or heat-resisting steel layer.
8. the water cooling composite construction of die casting mould core according to claim 7, which is characterized in that the thickness of the refractory layer
Degree is 0.2~3mm.
9. the water cooling composite construction of die casting mould core according to claim 8, which is characterized in that the cooling tube is not
Become rusty steel pipe.
10. the water cooling composite construction of die casting mould core according to claim 9, which is characterized in that the heat-conducting layer
Thermal conductivity for 100 DEG C~600 DEG C is the fine copper tube layer of 393~366W/ (m DEG C), the refractory layer be H13 mold steel layer or
100 DEG C~600 DEG C of thermal conductivity is the heat-resisting steel layer of 15~32W/ (m DEG C).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821351606.XU CN208712830U (en) | 2018-08-21 | 2018-08-21 | A kind of water cooling composite construction of die casting mould core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821351606.XU CN208712830U (en) | 2018-08-21 | 2018-08-21 | A kind of water cooling composite construction of die casting mould core |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208712830U true CN208712830U (en) | 2019-04-09 |
Family
ID=65978818
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821351606.XU Active CN208712830U (en) | 2018-08-21 | 2018-08-21 | A kind of water cooling composite construction of die casting mould core |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208712830U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523198A (en) * | 2021-06-30 | 2021-10-22 | 浙江凯华模具有限公司 | Heat conduction pipe loop structure in mould |
-
2018
- 2018-08-21 CN CN201821351606.XU patent/CN208712830U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113523198A (en) * | 2021-06-30 | 2021-10-22 | 浙江凯华模具有限公司 | Heat conduction pipe loop structure in mould |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105750499B (en) | A kind of method using profile-followed chill and forced convertion to investment-casting Local cooling | |
| CN208712830U (en) | A kind of water cooling composite construction of die casting mould core | |
| CN201669411U (en) | Cooling device of aluminum alloy metal type casting die | |
| CN207787628U (en) | A kind of tubulose Al-alloy parts casting device | |
| CN202192236U (en) | Cooling device for high-speed cast fine-grain ingot blanks for horizontal continuous casting of copper tubes | |
| CN201287189Y (en) | Copper-bar upward crystallizer for continuous casting machine | |
| CN206598542U (en) | A kind of high temperature resistant FDM print head structures | |
| CN205673566U (en) | Improved air-cooled casting wheel die | |
| CN104561684A (en) | Method for manufacturing high-silicon aluminum alloy hollow ingots | |
| CN209077725U (en) | A kind of die device being effectively improved high temperature alloy cast master alloy rod product rate | |
| CN207996982U (en) | A kind of pouring bushing for die casting die | |
| CN208662472U (en) | Big belt wheel die for processing | |
| CN202726014U (en) | An aluminum alloy hub side die with a heat dissipation structure | |
| CN202667611U (en) | Aluminum alloy wheel hub side die provided with radiating fins | |
| CN206104849U (en) | Aluminum alloy approaches chi fin die -casting structure | |
| CN108097881A (en) | A kind of efficient sand casting hybrid mold | |
| CN205835947U (en) | A kind of extruder is with uniform cooling and shaping device | |
| CN201537678U (en) | Vacuum heat insulation central gate bushing | |
| CN209062095U (en) | Iron alloy water-cooling heat-resistant cooling ingot mold | |
| CN210999928U (en) | Novel wear-resisting sizing sleeve device for PE pipeline | |
| CN207900146U (en) | A kind of efficient sand casting hybrid mold | |
| CN206796415U (en) | A kind of injection mould that can quickly cool down | |
| CN205571380U (en) | Carry out refrigerated device to thick big section of die casting | |
| CN214349469U (en) | Crystallizer for copper rod continuous casting | |
| CN211360567U (en) | Wheel hub foundry goods mould |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address | ||
| CP03 | Change of name, title or address |
Address after: 358 Xigu road Xiangshan Industrial Park Ningbo Zhejiang 315700 Patentee after: Ningbo Heli Technology Co.,Ltd. Address before: 315700 No. 358, Xigu Road, Xiangshan Industrial Park, Ningbo City, Zhejiang Province Patentee before: NINGBO HELI MOULD TECHNOLOGY Co.,Ltd. |