CN1050157A - Casting technique for servo slip ring - Google Patents
Casting technique for servo slip ring Download PDFInfo
- Publication number
- CN1050157A CN1050157A CN 90104720 CN90104720A CN1050157A CN 1050157 A CN1050157 A CN 1050157A CN 90104720 CN90104720 CN 90104720 CN 90104720 A CN90104720 A CN 90104720A CN 1050157 A CN1050157 A CN 1050157A
- Authority
- CN
- China
- Prior art keywords
- grams
- feed liquid
- epoxy resin
- slip ring
- insulations
- 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.)
- Pending
Links
Landscapes
- Casting Or Compression Moulding Of Plastics Or The Like (AREA)
Abstract
The invention discloses a kind of pouring technology of servo slip ring.It is the epoxy resin feed liquid for preparing to be put into loading hopper be heated to 60～100 ℃, to loading hopper pressurization 0.15～0.4MPa, is 10 in vacuum
3～10
2Under the state of Pa, make feed liquid inject mould from the bottom with the poring rate of 10～15 Grams Per Minutes; The mould that cast is good is put into holding furnace and is carried out the hot setting forming processes.Adopt the present invention that the finished product rate is reached more than 90%.
Description
The present invention relates to a kind of casting technique for servo slip ring, particularly the pouring technology of epoxy resin feed liquid under vacuum state.
Make servo slip ring at present and generally adopt the poured with epoxy resin cure process, copper ring is combined into one.Concrete pouring technology is: the epoxy resin feed liquid in the hopper is heated to more than 110 ℃, is 10 in vacuum
3-10
2Under the state of Pa, feed liquid is injected mould from the top, cast finishes, and carries out the hot setting moulding process.The subject matter of this technology is that the yield rate of product is low, be generally about 50%, this is because in casting process, the epoxy resin feed liquid is difficult to fill up between copper ring and the copper ring and only is the gap about 0.5mm, cause bubble or space easily, thus the cause that causes insulaion resistance and anti-electrical breakdown performance not to meet the demands.In addition,, also influenced servo slip ring dynamic contact resistance undulating value, the serious product rejection that then makes because the slip ring of cast easily produces distortion when machined.
Purpose of the present invention just provides a kind of pouring technology of servo slip ring, to improve the yield rate and the quality of product, overcomes the deficiency of existing technology.
Pouring technology provided by the invention is such: the epoxy resin feed liquid is 10 in vacuum
3-10
2The state of Pa injects mould down, with proportioning is
Epoxy resin 618# 100 grams,
Diluent 501# 10～15 grams,
Dibutyl phthalate (DBP) 10～20 grams,
Curing agent 594# 10～16 grams,
Silica flour 25～40 grams,
Talcum powder 30～50 grams
The epoxy resin feed liquid, be heated to 60～100 ℃, under the pressure of 0.15～0.4MPa, make the speed of feed liquid with 10～15 Grams Per Minutes, inject mould from the bottom; Then
Carry out the hot setting moulding, its parameter is 110 ℃ of insulations 1 hour, rises to 120 ℃ of insulations 1 hour, rises to 140 ℃ of insulations 6 hours at last, is chilled to room temperature subsequently.
Adopt the present invention, can make feed liquid fill up space between the copper ring, add silica flour in the feed liquid in addition, the mechanical strength and the anti-moisture absorption of material have been improved, thereby insulaion resistance (more than the 1000M Ω) and anti-electric breakdown strength (1min does not puncture for 1000V, 50Hz) between copper ring have been improved greatly; Talcous adding helps machined, makes product not yielding, thereby has reduced dynamic electric resistor undulating value (＜10m Ω).Adopt the present invention, the yield rate of product can reach more than 90%.
Be two embodiment of the present invention below.
Embodiment 1: cast is outer through being the slip ring of 35mm, and the copper ring number is 12.
The mould that copper ring is housed is placed in the vacuum (-tight) housing, be evacuated to 10 with mechanical pump
3-10
2Pa puts into the loading hopper of sealing with the epoxy resin feed liquid that has prepared, and the prescription of feed liquid is:
Epoxy resin 618# 100 grams
Diluent 501# 10 grams
Dibutyl phthalate (DBP) 15 grams
Curing agent 594# 12 grams
Silica flour 40 grams
Carbon black 0.05 gram
Carbon black adds in the feed liquid for preparing as pigment.
In loading hopper, feed liquid is heated to 80 ℃, with the air compressor 0.3MPa that in loading hopper, pressurizes, make the poring rate of feed liquid with 10 Grams Per Minutes, inject mould from the sprue gate that is located at mold bottom; The mould that cast is good is put into holding furnace, and temperature is risen to 110 ℃ of insulations 1 hour, temperature is risen to 120 ℃ again, is incubated 1 hour, temperature is risen to 140 ℃ at last, is incubated 6 hours, and stove is chilled to room temperature subsequently, mold removal.
Adopt the servo slip ring of this explained hereafter, leading indicator is:
Insulaion resistance average out to 1200M Ω,
Anti-electrical breakdown performance is 1000V(50Hz, 1min) do not puncture,
The dynamic electric resistor undulating value is less than 8m Ω.
Embodiment 2: the cast external diameter is the slip ring of 80mm, and the copper ring number is 204.
The mould that copper ring is housed is put into vacuum (-tight) housing, be evacuated to 10 with mechanical pump
3～10
2Pa, the epoxy resin feed liquid that has prepared is put into the loading hopper of sealing, and the prescription of feed liquid is:
Epoxy resin 618# 100 grams
Diluent 501# 15 grams
Dibutyl phthalate (DBP) 20 grams
Curing agent 594# 14 grams
Silica flour 35 grams
Talcum powder 45 grams
Carbon black 0.10 gram
Carbon black adds feed liquid as pigment.
In loading hopper, feed liquid is heated to 90 ℃, with the air compressor 0.4MPa that in loading hopper, pressurizes, make the poring rate of feed liquid with 12 Grams Per Minutes, inject mould from the sprue gate that is located at mold bottom; The mould that cast is good is put into holding furnace, and temperature is risen to 110 ℃, is incubated 1 hour, temperature is risen to 120 ℃ again, is incubated 1 hour, at last temperature is risen to 140 ℃ of insulations 6 hours, and stove is chilled to room temperature subsequently, mold removal.
Adopt the servo slip ring of this explained hereafter, leading indicator is:
Insulaion resistance average out to 1500M Ω,
Anti-electrical breakdown performance is 1000V(50Hz, 1min) do not puncture,
The dynamic electric resistor undulating value is less than 5m Ω.
Claims (1)
1, a kind of servo slip ring pouring forming technology is to be 10 with the epoxy resin feed liquid in vacuum
3～10
2The state of Pa injects mould down, through the hot setting moulding, copper ring is combined into one, and it is characterized in that:
With proportioning be
Epoxy resin 618# 100 grams
Diluent 501# 10～15 grams
Dibutyl phthalate (DBP) 10～20 grams
Curing agent 594# 10～16 grams
Silica flour 25～40 grams
Talcum powder 30～50 grams
The epoxy resin feed liquid,
Be heated to 60～100 ℃, under the pressure of 0.15～0.4MPa, make feed liquid inject mould from the bottom with the speed of 10～15 Grams Per Minutes; Then
Carry out the hot setting forming processes, its parameter is 110 ℃ of insulations 1 hour, rises to 120 ℃ of insulations 1 hour, rises to 140 ℃ of insulations 6 hours again, is chilled to room temperature subsequently.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104720 CN1050157A (en) | 1990-07-25 | 1990-07-25 | Casting technique for servo slip ring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90104720 CN1050157A (en) | 1990-07-25 | 1990-07-25 | Casting technique for servo slip ring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1050157A true CN1050157A (en) | 1991-03-27 |
Family
ID=4878704
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90104720 Pending CN1050157A (en) | 1990-07-25 | 1990-07-25 | Casting technique for servo slip ring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1050157A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063701C (en) * | 1996-05-15 | 2001-03-28 | 松下电器产业株式会社 | Terminal plate resin die casting method and resin die casting forming metal modeld evice for die casting motor |
| CN1079318C (en) * | 1999-05-21 | 2002-02-20 | 袁俊 | Coating method for spot copper piece surface |
| CN100448139C (en) * | 2006-07-19 | 2008-12-31 | 殷建伟 | Processing technology for copper end collar |
| CN106253024A (en) * | 2016-08-01 | 2016-12-21 | 安徽贝莱电子科技有限公司 | A kind of processing technique of radar collector ring |
| CN108373582A (en) * | 2018-02-24 | 2018-08-07 | 张洁琦 | A kind of conductive slip ring body cast glue and a kind of conductive slip ring body and its pouring procedure |
| CN114012975A (en) * | 2021-10-29 | 2022-02-08 | 中船九江精达科技股份有限公司 | Vacuum injection type pouring process method for microminiature conductive slip ring |
-
1990
- 1990-07-25 CN CN 90104720 patent/CN1050157A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1063701C (en) * | 1996-05-15 | 2001-03-28 | 松下电器产业株式会社 | Terminal plate resin die casting method and resin die casting forming metal modeld evice for die casting motor |
| CN1079318C (en) * | 1999-05-21 | 2002-02-20 | 袁俊 | Coating method for spot copper piece surface |
| CN100448139C (en) * | 2006-07-19 | 2008-12-31 | 殷建伟 | Processing technology for copper end collar |
| CN106253024A (en) * | 2016-08-01 | 2016-12-21 | 安徽贝莱电子科技有限公司 | A kind of processing technique of radar collector ring |
| CN108373582A (en) * | 2018-02-24 | 2018-08-07 | 张洁琦 | A kind of conductive slip ring body cast glue and a kind of conductive slip ring body and its pouring procedure |
| CN114012975A (en) * | 2021-10-29 | 2022-02-08 | 中船九江精达科技股份有限公司 | Vacuum injection type pouring process method for microminiature conductive slip ring |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN1050157A (en) | Casting technique for servo slip ring | |
| EP0135839A2 (en) | Method of manufacturing sintered ceramic body | |
| DE3380484D1 (en) | Method of manufacturing abrasive bodies | |
| CN110479959B (en) | Method for preparing magnesium-based composite material by lost foam casting | |
| CN1364746A (en) | Forming process for silicon carbide reflector blank and expansion and contraction mold | |
| EP0523651B1 (en) | Method for making high strength injection molded ferrous material | |
| CN114907133B (en) | Silicon-based ceramic core material, preparation method and silicon-based ceramic core | |
| USRE32622E (en) | Method for the manufacture of molds using casting sand or another mixture of raw material particles | |
| CN1048236C (en) | Method for manufacture of high-temp ceramic filter | |
| CN109054232A (en) | A kind of copper bar insulating sheath PVC maceration extract and its dipping process | |
| CN113087501A (en) | High-strength quartz ceramic roller and preparation process thereof | |
| USRE28498E (en) | Method of producing a thick-walled cured plastics moulding | |
| JPH0243356A (en) | Production of sputtering target for transparent conductive film | |
| JPH06287055A (en) | Production of sintered article of ceramic | |
| SU843716A3 (en) | Method of making articles from thermosetting plastic material | |
| SU783913A1 (en) | Method of manufacturing electrotechnical articles | |
| JP3112993B2 (en) | Manufacturing method of composite material of nylon and ceramics | |
| KR20110108279A (en) | Production of electrical insulation and insulated products | |
| JP3783316B2 (en) | Powder molding method | |
| JPS6428303A (en) | Production of sintered magnet alloy | |
| Alberino et al. | Method for Making Mat-Molded Rim Parts | |
| JPH07186116A (en) | Molding of ceramics | |
| JPH06207202A (en) | Production of molded article | |
| JPS61252102A (en) | Method of molding ceramic | |
| RU2032495C1 (en) | Method of making metal-plastic constant magnets |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C01 | Deemed withdrawal of patent application (patent law 1993) | ||
| WD01 | Invention patent application deemed withdrawn after publication |