CN109622936A - A kind of core apertures plugging technology - Google Patents
A kind of core apertures plugging technology Download PDFInfo
- Publication number
- CN109622936A CN109622936A CN201811607556.1A CN201811607556A CN109622936A CN 109622936 A CN109622936 A CN 109622936A CN 201811607556 A CN201811607556 A CN 201811607556A CN 109622936 A CN109622936 A CN 109622936A
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- CN
- China
- Prior art keywords
- plug
- core apertures
- plugging technology
- apertures
- core
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- 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.)
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D31/00—Cutting-off surplus material, e.g. gates; Cleaning and working on castings
- B22D31/002—Cleaning, working on castings
- B22D31/005—Sealing or impregnating porous castings
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
A kind of core apertures plugging technology of the present invention, comprising the following steps: 1) by plug and closure plug bubble in liquid nitrogen, make plug and block to fill in cooling meat to fitted position；2) in 10-15S, plug is caught in core apertures, forms first of sealing；3) liquid high temperature butter is added, second sealing is formed；4) it in 10-15S, blocks fork clip and enters in core apertures, form three seals；5) it stands to room temperature, completes plugging technology；The present invention has the characteristics that processing step is simple, high production efficiency, sealing effect are good.
Description
Technical field
The present invention relates to casting field more particularly to a kind of core apertures plugging technologies.
Background
When hollow work-piece carries out sand casting, core apertures are blocked after the completion of casting, traditional envelope
Closure plate method is using aluminium welding procedure, but not can guarantee 100% air tight for welding, and is had when secondary welding bright
Aobvious defect, there are leak/gas leak phenomenons.The processing technology of welding is complicated, and at high cost, potential danger can not prevent, therefore
A kind of new core apertures method for blocking is needed to change this status.
Summary of the invention
The purpose of the present invention is to solve the above the deficiencies in the prior art, provide core apertures plugging technology.
The technical scheme adopted by the invention is that a kind of such, core apertures plugging technology, comprising the following steps:
1) by plug and closure plug bubble in liquid nitrogen, make plug and block to fill in cooling meat to fitted position；
2) in 10-15S, plug is caught in core apertures, forms first of sealing；
3) liquid high temperature butter is added, second sealing is formed；
4) it in 10-15S, blocks fork clip and enters in core apertures, form three seals；
5) it stands to room temperature, completes plugging technology.
Preferably, plug is the assembly of rotary table and cylinder, and upward, cylinder is connected in rotary table big end the rotary table small end
At the heart, the closure plug is Bowl Plug；When assembling plug, plug cylindrical end is filled in downward in core apertures necking, rotary table part card
At the ladder of core apertures；When assembling Bowl Plug, bottom of bowl offsets with plug top downward.
It preferably, is interference fit between plug, closure plug and core apertures.
Preferably, the material of plug and closure plug is stainless steel.
Preferably, in step 1), being blocked in liquid nitrogen cooling time in plug and envelope is 5-10 minutes.
The utility model has the advantages that
1. core apertures plugging technology of the invention according to the principle of rising-heat contracting-cold, makes plug and blocks plug to contract on cooling,
Thermal expansion is restored to design size after being installed to designated position, makes plug and block to form interference fit between plug and core apertures, real
Existing tight seal.
2. core apertures plugging technology of the invention coats high temperature butter between plug and closure plug, due to the fusing point of butter
Higher than usually temperature, become solid-state after the cooling period, sealing is further strengthened.
3. core apertures plugging technology step of the invention is simple, high production efficiency and sealing effect is good is conducive to promote and answer
With.
Detailed description of the invention
Fig. 1 schematic diagram of the present invention；
Fig. 2 is plug schematic diagram；
Fig. 3 is to block plug schematic diagram；
Fig. 4 is embodiment sectional view.
1. 2. plug 3. of core apertures blocks plug 4. butter, 5. water channel.
Specific embodiment
In order to deepen the understanding of the present invention, below in conjunction with embodiment and attached drawing, the invention will be further described, should
The examples are only for explaining the invention, is not intended to limit the scope of the present invention..
As shown in Figure 1, a kind of core apertures plugging technology, comprising the following steps:
1) by plug and closure plug bubble in liquid nitrogen, make plug 2 and block to fill in 3 cooling meats to fitted position；
2) in 10-15S, plug 2 is caught in core apertures 1, forms first of sealing；
3) liquid high temperature butter 4 is added, second sealing is formed；
4) it in 10-15S, blocks plug 3 and is caught in core apertures 1, form three seals；
5) it stands to room temperature, completes plugging technology.
Water channel inside existing water cooling motor housing is manufactured with sand mold and gravity foundry technology, after the completion of casting
Block to core apertures can be used above-mentioned sand core plugging technology and blocks to core apertures 1, as in Figure 2-4, described
Plug 2 is the assembly of rotary table and cylinder, and upward, cylinder is connected at rotary table big end center rotary table small end, and the closure plug is
Bowl Plug；When assembling plug 2, plug cylindrical end is filled in downward in core apertures necking, and rotary table part is stuck at the ladder of core apertures；
When assembling Bowl Plug 3, bottom of bowl offsets at the top of plug 2 downward；Plug 2 blocks between plug 3 and core apertures 1 as interference fit；
Plug and the material for blocking plug are stainless steel；In step 1), in plug 2 and closure plug 3, the cooling time in liquid nitrogen is 5-10 points
Clock.
The principle expanded with heat and contract with cold is utilized, plug and sealing-plug are interference fitted in core apertures, and in plug 2 and sealing
It joined high temperature butter 4 between plug 3, fill up the gap between plug 2, sealing-plug 3 and core apertures 1 after butter solidification；Row
In addition to plug 2 and sealing-plug 3 due to processing dimension tolerance and other reasons exist and the coefficient of expansion is different existing for leakproofness ask
Topic；By the three-layer sealed of plug 2, butter 4 and sealing-plug 3, the tight seal of core apertures 1 is realized, ensure that and using
Cheng Zhong, the water in water channel will not be revealed, and assembly process is simple, and sealing performance is reliable, be conducive to promote and apply.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, all in essence of the invention
Within mind and principle, any modification, equivalent replacement, improvement and so on be should all be included in the protection scope of the present invention.
Claims (5)
1. a kind of core apertures plugging technology, which comprises the following steps:
1) by plug and closure plug bubble in liquid nitrogen, make plug and block to fill in cooling meat to fitted position；
2) in 10-15S, plug is caught in core apertures, forms first of sealing；
3) liquid high temperature butter is added, second sealing is formed；
4) it in 10-15S, blocks fork clip and enters in core apertures, form three seals；
5) it stands to room temperature, completes plugging technology.
2. a kind of core apertures plugging technology as described in claim 1, which is characterized in that the plug is the group of rotary table and cylinder
Zoarium, upward, cylinder is connected at rotary table big end center the rotary table small end, and the closure plug is Bowl Plug；When assembling plug,
Plug cylindrical end is filled in downward in core apertures necking, and rotary table part is stuck at the ladder of core apertures；When assembling Bowl Plug, bottom of bowl court
Under and plug at the top of offset.
3. a kind of core apertures plugging technology as claimed in claim 2, which is characterized in that the plug blocks plug and core apertures
Between for interference fit.
4. a kind of core apertures plugging technology as described in claim 1, which is characterized in that the plug and the material for blocking plug are
Stainless steel.
5. a kind of core apertures plugging technology as described in claim 1, which is characterized in that in the step 1), in plug and envelope
Being blocked in cooling time in liquid nitrogen is 5-10 minutes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811607556.1A CN109622936A (en) | 2018-12-27 | 2018-12-27 | A kind of core apertures plugging technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811607556.1A CN109622936A (en) | 2018-12-27 | 2018-12-27 | A kind of core apertures plugging technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109622936A true CN109622936A (en) | 2019-04-16 |
Family
ID=66078129
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811607556.1A Pending CN109622936A (en) | 2018-12-27 | 2018-12-27 | A kind of core apertures plugging technology |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109622936A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110625100A (en) * | 2019-09-29 | 2019-12-31 | 福建福清核电有限公司 | Method for treating defective sand holes of mechanical equipment |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5479961A (en) * | 1994-12-09 | 1996-01-02 | Senior Engineering Company | Method of plugging a heat exchanger tube and plug therefor |
| JPH09119553A (en) * | 1995-10-23 | 1997-05-06 | Nissin Kogyo Kk | Solenoid valve device |
| CN202471359U (en) * | 2012-03-12 | 2012-10-03 | 陈东明 | Waterproof shell being convenient for seal test |
| CN203857193U (en) * | 2013-11-12 | 2014-10-01 | 格力电器（芜湖）有限公司 | Rubber plug of connecting pipe |
| CN204692569U (en) * | 2015-04-29 | 2015-10-07 | 潍柴动力股份有限公司 | A kind of seal plug for auxiliary hole |
| CN105804686A (en) * | 2016-05-11 | 2016-07-27 | 中国石油化工股份有限公司 | Pipe string full-bore blocking device and manufacturing method of blocking body of pipe string full-bore blocking device |
| CN106382394A (en) * | 2016-11-22 | 2017-02-08 | 广州市海同机电设备有限公司 | Anti-explosion type on-off control valve and manufacturing method thereof |
| WO2017186388A1 (en) * | 2016-04-26 | 2017-11-02 | Logstor A/S | System, plug and method for sealing a hole in a sleeve positioned between insulated pipes |
| CN108556290A (en) * | 2018-01-09 | 2018-09-21 | 青岛海泰科模具有限公司 | Injection mold water route blocks and appearance treatment process |
-
2018
- 2018-12-27 CN CN201811607556.1A patent/CN109622936A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5479961A (en) * | 1994-12-09 | 1996-01-02 | Senior Engineering Company | Method of plugging a heat exchanger tube and plug therefor |
| JPH09119553A (en) * | 1995-10-23 | 1997-05-06 | Nissin Kogyo Kk | Solenoid valve device |
| CN202471359U (en) * | 2012-03-12 | 2012-10-03 | 陈东明 | Waterproof shell being convenient for seal test |
| CN203857193U (en) * | 2013-11-12 | 2014-10-01 | 格力电器（芜湖）有限公司 | Rubber plug of connecting pipe |
| CN204692569U (en) * | 2015-04-29 | 2015-10-07 | 潍柴动力股份有限公司 | A kind of seal plug for auxiliary hole |
| WO2017186388A1 (en) * | 2016-04-26 | 2017-11-02 | Logstor A/S | System, plug and method for sealing a hole in a sleeve positioned between insulated pipes |
| CN105804686A (en) * | 2016-05-11 | 2016-07-27 | 中国石油化工股份有限公司 | Pipe string full-bore blocking device and manufacturing method of blocking body of pipe string full-bore blocking device |
| CN106382394A (en) * | 2016-11-22 | 2017-02-08 | 广州市海同机电设备有限公司 | Anti-explosion type on-off control valve and manufacturing method thereof |
| CN108556290A (en) * | 2018-01-09 | 2018-09-21 | 青岛海泰科模具有限公司 | Injection mold water route blocks and appearance treatment process |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110625100A (en) * | 2019-09-29 | 2019-12-31 | 福建福清核电有限公司 | Method for treating defective sand holes of mechanical equipment |
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| SE01 | Entry into force of request for substantive examination | ||
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20190416 |