CN102441645A - Rice-milling conveying head for casting wear-resistant non-inoculated white cast iron - Google Patents
Rice-milling conveying head for casting wear-resistant non-inoculated white cast iron Download PDFInfo
- Publication number
- CN102441645A CN102441645A CN2011103998410A CN201110399841A CN102441645A CN 102441645 A CN102441645 A CN 102441645A CN 2011103998410 A CN2011103998410 A CN 2011103998410A CN 201110399841 A CN201110399841 A CN 201110399841A CN 102441645 A CN102441645 A CN 102441645A
- Authority
- CN
- China
- Prior art keywords
- husk rice
- delivery head
- rice
- rice delivery
- wear
- 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.)
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Links
- 238000005266 casting Methods 0.000 title claims abstract description 22
- 238000003801 milling Methods 0.000 title abstract description 14
- 229910001037 White iron Inorganic materials 0.000 title abstract 5
- 239000004576 sand Substances 0.000 claims abstract description 41
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 18
- 229910052742 iron Inorganic materials 0.000 claims abstract description 9
- 229910052761 rare earth metal Inorganic materials 0.000 claims abstract description 3
- 150000002910 rare earth metals Chemical class 0.000 claims abstract description 3
- 241000209094 Oryza Species 0.000 claims description 66
- 235000007164 Oryza sativa Nutrition 0.000 claims description 66
- 235000009566 rice Nutrition 0.000 claims description 66
- 239000010903 husk Substances 0.000 claims description 62
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 40
- MHKWSJBPFXBFMX-UHFFFAOYSA-N iron magnesium Chemical compound [Mg].[Fe] MHKWSJBPFXBFMX-UHFFFAOYSA-N 0.000 claims description 18
- 238000000465 moulding Methods 0.000 claims description 7
- 230000000630 rising effect Effects 0.000 claims description 7
- 239000000203 mixture Substances 0.000 claims description 6
- 239000011777 magnesium Substances 0.000 claims description 5
- 229910052749 magnesium Inorganic materials 0.000 claims description 4
- 229910000519 Ferrosilicon Inorganic materials 0.000 claims description 3
- 229910045601 alloy Inorganic materials 0.000 claims description 3
- 239000000956 alloy Substances 0.000 claims description 3
- 238000009395 breeding Methods 0.000 claims description 3
- 230000001488 breeding effect Effects 0.000 claims description 3
- 229910001567 cementite Inorganic materials 0.000 claims description 3
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical compound C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 claims description 3
- 238000002844 melting Methods 0.000 claims description 3
- 230000008018 melting Effects 0.000 claims description 3
- 229910001562 pearlite Inorganic materials 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 3
- 229910001141 Ductile iron Inorganic materials 0.000 claims description 2
- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 abstract description 3
- 229910000831 Steel Inorganic materials 0.000 description 3
- 239000010959 steel Substances 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 229910001060 Gray iron Inorganic materials 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 229910001018 Cast iron Inorganic materials 0.000 description 1
- 241000196324 Embryophyta Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000000396 iron Nutrition 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007493 shaping process Methods 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
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- Molds, Cores, And Manufacturing Methods Thereof (AREA)
Abstract
The invention discloses a rice-milling conveying head for casting wear-resistant non-inoculated white cast iron. According to the invention, the rice-milling conveying head is modeled by using a clay-sand green sand mold through unit-sand ramming, the lower half part of a rice-milling conveying head model is arranged on a lower green sand mold, the upper half part of the rice-milling conveying head model, a down-sprue model, an inner sprue model and an exhaust riser model are arranged on an upper green sand mold, the excircle of a circular sleeve of the rice-milling conveying head is provided with spiral trapezoidal conveying blades, the two ends of the circular sleeve of the rice-milling conveying head are respectively provided with two opposite drive key-slots, and the lower green sand mold and the upper green sand mold are positioned and combined by external positioning pins; and furnace burden is smelted in a cupola, and molten rare-earth ferrosilicomagnesium iron is used in a spheriodized ladle, and not inoculated. By using the rice-milling conveying head for casting wear-resistant non-inoculated white cast iron, after molten iron enters a sprue ingate, a cavity of the rice-milling conveying head is filled with the molten iron. A method for producing the rice-milling conveying head for casting wear-resistant non-inoculated white cast iron is simple and easy to operate. Based on the wear resistance of the rice-milling conveying head for casting wear-resistant non-inoculated white cast iron, the service life of the rice-milling conveying head is improved, and the rice-milling quality is improved.
Description
Technical field
The present invention relates to a kind of casting cast iron products, especially cast the wear-resistant husk rice delivery head that does not breed the spoken parts in traditional operas magnesium iron.
Background technology
The husk rice delivery head is because of the bad part of changing often that weares and teares in the rice mill.At present the circle with steel matter that has of production husk rice delivery head puts the welding helical blade, more than blanking, processing, shaping, the welding sequence and complex process, and also of poor quality, cause husk rice to yield poorly; What have casts the husk rice delivery head with grey cast-iron, and it is bad often to wear and tear, and is to cause the one of the main reasons of cracking rice in the rice milling process.
Summary of the invention
The present invention supplies a kind of wear-resistant husk rice delivery head that does not breed the spoken parts in traditional operas magnesium iron of casting, and uses and does not breed the wear-resistant character of spoken parts in traditional operas magnesium iron, improves the service life of husk rice delivery head, has improved the husk rice quality.
The technical solution adopted for the present invention to solve the technical problems is: comprise exhaust rising head, last greensand mold, husk rice delivery head die cavity, the husk rice delivery head apperance first half, husk rice delivery head apperance alignment pin, endoporus core, husk rice delivery head apperance Lower Half, following greensand mold, clay-bonded sand greensand mold system sand, drag box, moulding board, driving keyway, ingate, husk rice delivery head circle cover, the trapezoidal conveying blade of spiral, sprue, cope, case outside fix pin composition.Husk rice delivery head apperance Lower Half is located at down on the greensand mold; Last greensand mold is provided with husk rice delivery head apperance first half die cavity, ingate die cavity, sprue die cavity and exhaust rising head die cavity; Husk rice delivery head circle overlaps endoporus and is provided with the endoporus core, and husk rice delivery head circle cover cylindrical is provided with the trapezoidal conveying blade of spiral, and husk rice delivery head circle cover two ends are provided with the relative driving keyway in each two position, and last greensand mold and following greensand mold are with case outside fix finger setting mould assembly; With the single sand shop sand molding of clay-bonded sand greensand mold; The cupola melting furnace charge, rare earth magnesium ferrosilicon alloy nodulizer nodularization molten iron; Casting the wear-resistant spoken parts in traditional operas molten ductile iron that do not breed advances people's sprue, is full of husk rice delivery head die cavity after advancing people's ingate.
Clay-bonded sand wet type system sand is that casting is used the silica sand granularity to wet as 20-40 order clay-bonded sand to think system sand.
30 millimeters high 25 millimeters upper bases of the single head helical pitch of the trapezoidal conveying blade of spiral are gone to the bottom 16 millimeters for 8 millimeters.
Cast the wear-resistant husk rice delivery head chemical composition that does not breed the spoken parts in traditional operas magnesium iron: C:3.5-3.9%; Si:2.4-2.7%; Mn :≤0.6
≤0.07%; S :≤0.03%RE:0.02-0.04, Mg:0.03-0.06%.
Casting wear-resistant husk rice delivery head metallographic structure of not breeding the spoken parts in traditional operas magnesium iron is: cementite+pearlite.
The invention has the beneficial effects as follows, cast the wear-resistant husk rice delivery head that does not breed the spoken parts in traditional operas magnesium iron and improve 10 times, improve 3 times of service lifes, improved the husk rice quality than the husk rice delivery head of grey cast-iron than the husk rice delivery head production efficiency of steel welding.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Accompanying drawing is the wear-resistant structure chart that does not breed the husk rice delivery head of spoken parts in traditional operas magnesium iron of casting.
Fig. 1 is the B-B cutaway view of Fig. 2.
Fig. 2 is the A-A cutaway view of Fig. 1.
Among the figure 1, the exhaust rising head, 2, go up greensand mold, 3 husk rice delivery head die cavities, 4, the husk rice delivery head apperance first half, 5, husk rice delivery head apperance alignment pin; 6, endoporus core, 7, husk rice delivery head apperance Lower Half, 8, following greensand mold, 9, clay-bonded sand greensand mold system sand, 10, drag box; 11, moulding board, 12, drive keyway, 13, ingate, 14 husk rice delivery heads circle cover; 15, the trapezoidal conveying blade of spiral, 16, sprue, 17, cope, 18 casees outside fix pins.
The specific embodiment
Accompanying drawing is the wear-resistant structure chart of not educating the husk rice delivery head of spoken parts in traditional operas magnesium iron of the casting of jet-air rice polisher NF-14 type.In Fig. 1,2, on moulding board 11, put husk rice delivery head apperance Lower Half 7 well and put drag box 10 again, make down greensand mold 8 with clay-bonded sand wet type system sand 9 spring sand; The following greensand mold of making from moulding board 11 upset 8; On husk rice helical feed head mould appearance Lower Half 7, put the husk rice delivery head apperance first half 4 well with two alignment pins of husk rice delivery head apperance, 5 location; Be placed on cope 16 on the drag box 10 and spread layering sand with two case outside fix pins 18 location; Be placed on sprue 16 apperances, ingate 13 apperances and exhaust rising head 1 apperance on the relevant position, make greensand mold 2 with clay-bonded sand wet type system sand 9 spring sand; Extract sprue 16 apperances and exhaust rising head 1 apperance; Open wide and go up greensand mold 2; Trip out the apperance of the husk rice delivery head apperance Lower Half 7 and the husk rice delivery head first half 4 along hand of spiral spiral; Trip out ingate 13 apperances; Respectively there are relative driving keyway 12 cores in two each 10 millimeters positions of long 20 mm wides and the endoporus core 6 of 62 millimeters cores of husk rice delivery head circle cover 14 endoporus Φ in the good up and down husk rice delivery head of the core print seat of following greensand mold 8 circle cover 14 two ends, locate last greensand mold 2 with two case outside fix pins 18 and are combined in down on the greensand mold 8, are placed on the type of getting togather and pour into a mould the place; Husk rice delivery head circle cover 14 cylindrical length are provided with go to the bottom 16 millimeters the trapezoidal conveying blade 15 of twin-feed spiral of 8 millimeters of 30 millimeters high 25 millimeters upper bases of single head helical pitch; Charge composition is: No. 22 foundry pig irons 70%, foundry returns 20%, steel scrap 10%; With 3t cupola melting furnace charge; Be sidelong 8 kilograms of Mg8RE7 Antaciron nodulizers on retaining dam one, nodularization bag bottom, on nodulizer, cover the ferro-silicon alloy powder of 1.6 kilograms of 75%Si, cover an amount of plant ash and compacting; In the casting ladle of dress nodulizer, pour 400 kilograms 1420 ± 20 ℃ molten iron; Treat that nodularization finishes to stir and skim, do not breed, pour 200 kilograms of molten iron again; Cast during 1360 ± 20 ℃ of nodularization molten iron, the nodularization molten iron gets into and is full of husk rice delivery head die cavity 3 after sprue 16 advances people's ingate 13.
Clay-bonded sand wet type system sand is that casting uses the silica sand granularity to be 20-40 order clay-bonded sand wet type system sand.
30 millimeters high 25 millimeters upper bases of the single head helical pitch of the trapezoidal conveying blade of spiral are gone to the bottom 16 millimeters for 8 millimeters.
Cast the wear-resistant husk rice delivery head chemical composition that does not breed the spoken parts in traditional operas magnesium iron: C:3.5-3.9%, Si:2.4-2.7%, Mn :≤0.6%, P :≤0.07%, S :≤0.03%, RE:0.02-0.04%, Mg:0.03-0.06%.
Casting wear-resistant husk rice delivery head metallographic structure of not breeding the spoken parts in traditional operas magnesium iron is: cementite+pearlite.
Claims (5)
1. cast the wear-resistant husk rice delivery head that does not breed the spoken parts in traditional operas magnesium iron for one kind; Comprise exhaust rising head, last greensand mold, husk rice delivery head die cavity, the husk rice delivery head apperance first half, husk rice delivery head apperance alignment pin, endoporus core, husk rice delivery head apperance Lower Half, following greensand mold, clay-bonded sand greensand mold system sand, drag box, moulding board, driving keyway, ingate, husk rice delivery head circle cover, spiral spiral conveying blade, sprue, cope, case outside fix pin composition; Husk rice delivery head apperance Lower Half is located at down on the greensand mold, and last greensand mold is provided with the husk rice delivery head apperance first half, ingate apperance, sprue apperance and exhaust rising head apperance; Husk rice delivery head circle cover endoporus is provided with the endoporus core; Helical feed head circle cover cylindrical is provided with the trapezoidal conveying blade of twin-feed spiral; Husk rice delivery head circle cover two ends are provided with the relative driving keyway in each two position, and last greensand mold and following greensand mold are with case outside fix finger setting mould assembly; With the single sand shop sand molding of clay-bonded sand wet type; The cupola melting furnace charge, rare earth magnesium ferrosilicon alloy nodulizer nodularization molten iron; Casting the wear-resistant spoken parts in traditional operas molten ductile iron that do not breed advances people's sprue and advances and be full of husk rice delivery head die cavity after the people advances people's ingate.
2. the wear-resistant husk rice delivery head that does not breed the spoken parts in traditional operas magnesium iron of casting according to claim 1 is characterized in that: clay-bonded sand wet type system sand is that casting uses the silica sand granularity to be 20-40 order clay-bonded sand greensand mold system sand.
3. the wear-resistant husk rice delivery head that does not breed the spoken parts in traditional operas magnesium iron of casting according to claim 1 is characterized in that: 30 millimeters high 25 millimeters upper bases of the helical pitch of the trapezoidal conveying blade of spiral are gone to the bottom 16 millimeters for 8 millimeters.
4. the wear-resistant husk rice delivery head that does not breed the spoken parts in traditional operas magnesium iron of casting according to claim 1; It is characterized in that: cast the wear-resistant husk rice delivery head chemical composition that does not breed the spoken parts in traditional operas magnesium iron: C:3.5-3.9%, Si:2.4-2.7%, Mn :≤0.6%; P :≤0.07%; S :≤0.03%, RE:0.02-0.04%, Mg:0.02-0.06%.
5. the wear-resistant husk rice delivery head that does not breed the spoken parts in traditional operas magnesium iron of casting according to claim 1 is characterized in that: casting wear-resistant husk rice delivery head metallographic structure of not breeding the spoken parts in traditional operas magnesium iron is cementite+pearlite.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110399841 CN102441645B (en) | 2011-11-26 | 2011-11-26 | Rice-milling conveying head for casting wear-resistant non-inoculated white cast iron |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110399841 CN102441645B (en) | 2011-11-26 | 2011-11-26 | Rice-milling conveying head for casting wear-resistant non-inoculated white cast iron |
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| Publication Number | Publication Date |
|---|---|
| CN102441645A true CN102441645A (en) | 2012-05-09 |
| CN102441645B CN102441645B (en) | 2013-06-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110399841 Active CN102441645B (en) | 2011-11-26 | 2011-11-26 | Rice-milling conveying head for casting wear-resistant non-inoculated white cast iron |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233049A (en) * | 2013-06-12 | 2014-12-24 | 陈硕 | Method for casting wear-resistant cast iron valve guide pipe |
| CN104276743A (en) * | 2013-07-05 | 2015-01-14 | 陈硕 | Method for casting vermicular graphite cast iron glass bottle split mold |
| CN104959552A (en) * | 2015-07-03 | 2015-10-07 | 刘天平 | Positioning structure and positioning method for casting castings |
| CN109397119A (en) * | 2018-09-17 | 2019-03-01 | 湖北叶威（集团）粮油机械有限公司 | A kind of manufacture craft of chlorophyll rice rice mill roller |
| CN109395801A (en) * | 2018-09-17 | 2019-03-01 | 湖北叶威（集团）粮油机械有限公司 | A kind of manufacture craft of embryo rice mill rice roller |
| CN109397118A (en) * | 2018-09-17 | 2019-03-01 | 湖北叶威（集团）粮油机械有限公司 | A kind of manufacture craft of rice mill roller |
| CN109397116A (en) * | 2018-09-17 | 2019-03-01 | 湖北叶威（集团）粮油机械有限公司 | A kind of manufacture craft of high dietary-fiber rice rice mill roller |
| CN111961955A (en) * | 2020-09-12 | 2020-11-20 | 长沙合丰耐磨材料有限公司 | High-toughness nodular cast iron and preparation method thereof |
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| CN1373695A (en) * | 1999-09-16 | 2002-10-09 | 霍特弗洛压铸有限公司 | Hot sprue system for diecasting |
| CN101137452A (en) * | 2005-03-07 | 2008-03-05 | 海德路铸铝有限公司 | Casting mould, process and device for casting metal melts |
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2011
- 2011-11-26 CN CN 201110399841 patent/CN102441645B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS51141718A (en) * | 1975-06-02 | 1976-12-06 | Tokyo Keiso Kk | Method of making ribbed tapered tube for areal flow meter |
| CN2195379Y (en) * | 1994-04-21 | 1995-04-26 | 杨宗行 | Rice mill with rice knife and roller |
| CN1373695A (en) * | 1999-09-16 | 2002-10-09 | 霍特弗洛压铸有限公司 | Hot sprue system for diecasting |
| CN101137452A (en) * | 2005-03-07 | 2008-03-05 | 海德路铸铝有限公司 | Casting mould, process and device for casting metal melts |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104233049A (en) * | 2013-06-12 | 2014-12-24 | 陈硕 | Method for casting wear-resistant cast iron valve guide pipe |
| CN104276743A (en) * | 2013-07-05 | 2015-01-14 | 陈硕 | Method for casting vermicular graphite cast iron glass bottle split mold |
| CN104959552A (en) * | 2015-07-03 | 2015-10-07 | 刘天平 | Positioning structure and positioning method for casting castings |
| CN109397119A (en) * | 2018-09-17 | 2019-03-01 | 湖北叶威（集团）粮油机械有限公司 | A kind of manufacture craft of chlorophyll rice rice mill roller |
| CN109395801A (en) * | 2018-09-17 | 2019-03-01 | 湖北叶威（集团）粮油机械有限公司 | A kind of manufacture craft of embryo rice mill rice roller |
| CN109397118A (en) * | 2018-09-17 | 2019-03-01 | 湖北叶威（集团）粮油机械有限公司 | A kind of manufacture craft of rice mill roller |
| CN109397116A (en) * | 2018-09-17 | 2019-03-01 | 湖北叶威（集团）粮油机械有限公司 | A kind of manufacture craft of high dietary-fiber rice rice mill roller |
| CN111961955A (en) * | 2020-09-12 | 2020-11-20 | 长沙合丰耐磨材料有限公司 | High-toughness nodular cast iron and preparation method thereof |
| CN111961955B (en) * | 2020-09-12 | 2022-03-11 | 长沙合丰耐磨材料有限公司 | High-toughness nodular cast iron and preparation method thereof |
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| CN102441645B (en) | 2013-06-05 |
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Owner name: NANTONG GANGAN MACHINERY MANUFACTURING CO., LTD. Free format text: FORMER OWNER: LIU ZHIZENG Effective date: 20131111 |
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Effective date of registration: 20131111 Address after: 226300 Jiangsu city of Nantong province Tongzhou District Purple Star East Village town seven groups Patentee after: Nantong Steel Machinery Manufacturing Co., Ltd. Address before: 272500 Shandong province Wenshang County in North Street No. 1518 Patentee before: Liu Zhizeng |