CN102489685A - Wear-resistant white cast iron rice sieve batten - Google Patents
Wear-resistant white cast iron rice sieve batten Download PDFInfo
- Publication number
- CN102489685A CN102489685A CN2011103998533A CN201110399853A CN102489685A CN 102489685 A CN102489685 A CN 102489685A CN 2011103998533 A CN2011103998533 A CN 2011103998533A CN 201110399853 A CN201110399853 A CN 201110399853A CN 102489685 A CN102489685 A CN 102489685A
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- China
- Prior art keywords
- bolt
- wear
- press strip
- screen sheet
- white cast
- 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.)
- Granted
Links
- 235000007164 Oryza sativa Nutrition 0.000 title claims abstract description 48
- 235000009566 rice Nutrition 0.000 title claims abstract description 48
- 229910001037 White iron Inorganic materials 0.000 title abstract description 6
- 240000007594 Oryza sativa Species 0.000 title 1
- 241000209094 Oryza Species 0.000 claims abstract description 47
- 239000004576 sand Substances 0.000 claims abstract description 41
- 238000005266 casting Methods 0.000 claims abstract description 18
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 12
- 229910052742 iron Inorganic materials 0.000 claims abstract description 6
- 238000003723 Smelting Methods 0.000 claims abstract description 3
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims description 42
- 244000035744 Hura crepitans Species 0.000 claims description 9
- 238000000465 moulding Methods 0.000 claims description 9
- 229910001567 cementite Inorganic materials 0.000 claims description 3
- KSOKAHYVTMZFBJ-UHFFFAOYSA-N iron;methane Chemical group C.[Fe].[Fe].[Fe] KSOKAHYVTMZFBJ-UHFFFAOYSA-N 0.000 claims description 3
- 239000000377 silicon dioxide Substances 0.000 claims description 3
- 239000000126 substance Substances 0.000 claims description 2
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 238000003801 milling Methods 0.000 abstract description 2
- 230000037431 insertion Effects 0.000 abstract 2
- 238000003780 insertion Methods 0.000 abstract 2
- 239000004927 clay Substances 0.000 abstract 1
- 230000002035 prolonged effect Effects 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 229910001018 Cast iron Inorganic materials 0.000 description 2
- 229910001060 Gray iron Inorganic materials 0.000 description 2
- 239000010903 husk Substances 0.000 description 2
- 238000003754 machining Methods 0.000 description 2
- 238000002844 melting Methods 0.000 description 2
- 230000008018 melting Effects 0.000 description 2
- 229910001562 pearlite Inorganic materials 0.000 description 2
- 210000001138 tear Anatomy 0.000 description 2
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000010437 gem Substances 0.000 description 1
- 229910001751 gemstone Inorganic materials 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000009628 steelmaking Methods 0.000 description 1
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- Shovels (AREA)
- Soil Working Implements (AREA)
Abstract
The invention provides a wear-resistant white cast iron rice sieve batten. The batten is characterized in that a detachable box and spring sands of green clay sand mold unit sands are used for shaping; a sprue is arranged on an upper green sand mold; a runner, an ingate and rice sieve battens are arranged on a lower green sand mold; the lower end of a bolt A is inserted into a bolt A insertion hole; the lower end of a bolt B is inserted into a bolt B insertion hole; the upper green sand mold and the lower green sand mold are positioned and jointly molded by positioning pins outside the box; an electric furnace is used for smelting furnace burdens; and after entering the sprue, the runner and the ingate, the molten iron of the wear-resistant white cast iron rice sieve batten fills the cavities of the rice sieve battens and casts in the upper ends of the bolts A and B. The wear-resistant white cast iron rice sieve batten casting in the bolts has the following beneficial effects: the bolts are firmly bonded with the rice sieves; and the service lives of the rice sieve battens are prolonged and the milling quality is improved by applying the wear resistance of the wear-resistant white cast iron.
Description
Technical field
The present invention relates to a kind of casting cast iron products, especially cast 2 wear-resistant white cast rice huller screen sheet press strip.
Background technology
Rice huller screen sheet press strip is because of the bad part of changing often that weares and teares in the rice mill.Produce at present rice huller screen sheet press strip, what have uses machining production, on stripe shape iron plate jewel hole, insert bolt, the production process content is various and of poor qualityly cause husk rice to yield poorly; What have casts with grey cast-iron, and it is bad often to wear and tear, and causes the one of the main reasons of cracking rice in the rice milling process.
Summary of the invention
The present invention provides a kind of casting 2 wear-resistant white cast rice huller screen sheet press strip, and the castingin bolt engages firmly with rice huller screen sheet press strip, and white cast iron anti-wear is durable, has improved rice huller screen sheet press strip service life, has improved the husk rice quality.
The technical solution adopted for the present invention to solve the technical problems is: be made up of last greensand mold, sprue, cross gate, rice huller screen sheet press strip, first screw jack, first bolt lower end, following greensand mold, moulding board, first bolt upper end, second screw jack, second bolt lower end, second bolt upper end, case outside fix pin, detachable sandbox, ingate, clay-bonded sand greensand mold system sand.Rice huller screen sheet press strip, first screw jack, first bolt lower end, first bolt upper end, second screw jack, second bolt lower end, second bolt upper end, ingate, cross gate are located at down on the greensand mold; First bolt lower end is inserted in the first screw jack; Second bolt lower end is inserted in the second screw jack; Sprue is located on the greensand mold, and with detachable sandbox and the single sand shop sand molding of clay-bonded sand greensand mold, last greensand mold and following greensand mold are with case outside fix finger setting mould assembly; The electro-smelting furnace charge; 2 wear-resistant white cast rice huller screen sheet press strip molten iron advances people's sprue and advances people's cross gate and enter to be full of behind people's ingate rice huller screen sheet press strip die cavity and castingin first, second bolt upper end.
Clay-bonded sand greensand mold system sand is that casting uses the silica sand granularity to be 20-40 order clay-bonded sand greensand mold system sand.
The chemical composition of casting 2 wear-resistant white cast rice huller screen sheet press strip: C:3.5-3.8%, Si :≤0.6%, Mn:0.15-0.20%, P :≤0.3%, S:0.2-0.4%.
The metallographic structure of casting 2 wear-resistant white cast rice huller screen sheet press strip is: cementite+pearlite.
The invention has the beneficial effects as follows; Can enhance productivity to pick up than machining production with the production of casting 2 wear-resistant white cast rice huller screen sheet press strip and many times; And bolt engages firm, wear-resistant durablely with rice huller screen sheet press strip, and 2 wear-resistant white cast rice huller screen sheet press strip improves 4 times than grey cast-iron rice huller screen sheet press strip service life.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is described further.
Accompanying drawing is the structure chart of casting 2 wear-resistant white cast rice huller screen sheet press strip.
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, go up greensand mold, 2, sprue, 3, cross gate, 4, rice huller screen sheet press strip; 5, first screw jack, 6, first bolt lower end, 7, greensand mold down, 8, moulding board; 9, first bolt upper end, 10, the second screw jack, 11, second bolt lower end, 12, second bolt upper end; 13, case outside fix pin, 14, detachable sandbox, 15, ingate, 16, clay-bonded sand greensand mold system sand.
The specific embodiment
Accompanying drawing is the structure chart of the casting 2 wear-resistant white cast rice huller screen sheet press strip of jet-air rice polisher NF-14 type.In Fig. 1,2; Type 4 casting method spring moulding with clay-bonded sand wet type system sand 17 and detachable sandbox 15; On moulding board 8, put earlier rice huller screen sheet press strip 4, the ingate 16 of 15 millimeters of length 200 mm wides 20 millimeters thick that are provided with first screw jack 5 and second screw jack 10, the apperance of cross gate 3 well; On moulding board 8, put the drag box of detachable sandbox 15 again well, make down greensand mold 7 with clay-bonded sand greensand mold system sand 17 spring sand; Make down greensand mold 7 from moulding board 8 upsets and afterwards and with 3 case outside fix pins, 13 location put the cope of detachable sandbox 15 well and spread down tap sand, after position of sound production sprue 2 apperances on cross gate 3 apperances, make greensand mold 1 with clay-bonded sand greensand mold system sand 17 spring sand; Trip out sprue 2 apperances; Open wide and go up greensand mold 1; Trip out the apperance of rice huller screen sheet press strip 4 on following greensand mold 7, ingate 16, cross gate 3; Be inserted in the first bolt lower end 6 of cup head M6 * 28 millimeter in the first screw jack 5 of 18 millimeters of Φ 4.8 millimeters deep; The second bolt lower end 11 of cup head M6 * 28 millimeter is inserted in the second screw jack 10 of 18 millimeters of Φ 4.8 millimeters deep, and first screw jack 5 is 160 ± 1 millimeters with the pitch of holes of second screw jack 10, and the bolt axis is to 20 millimeters of nearly broadside distances; Following greensand mold 7 is located mould assemblys with last greensand mold 14 with 3 case outside fix pins 13, takes off detachable sandbox 15 block sequenceses use but be placed on the cast place to the greensand mold of having made type behind the mould assembly.With 500kg electric induction furnace melting furnace charge; Charge composition is: steel-making is with three type 80% of one group of one-level of the pig iron; Foundry returns 20%; Pour into a mould when molten iron is reduced to 1400 ± 10 ℃ behind cast iron melting to 1500 ± 10 ℃, casting 2 wear-resistant white cast material molten iron gets into sprue 2 and gets into and be full of rice huller screen sheet press strip 4 die cavities and castingin first bolt upper end 9 and second bolt upper end 12 after cross gates 3 get into ingates 16.
Clay-bonded sand greensand mold system sand is that casting uses the silica sand granularity to be 20-40 order clay-bonded sand greensand mold system sand.
The chemistry of casting 2 wear-resistant white cast rice huller screen sheet press strip becomes: C:3.5-3.8%, and Si :≤0.6%, Mn:0.15-0.20%, P :≤0.3%, S:0.2-0.4%.
The metallographic structure of casting 2 wear-resistant white cast rice huller screen sheet press strip is: cementite+pearlite.
Claims (4)
1. cast 2 wear-resistant white cast rice huller screen sheet press strip for one kind; Form by last greensand mold, sprue, cross gate, rice huller screen sheet press strip, first screw jack, first bolt lower end, following greensand mold, moulding board, first bolt upper end, second screw jack, second bolt lower end, second bolt upper end, case outside fix pin, detachable sandbox, ingate, clay-bonded sand greensand mold system sand; Rice huller screen sheet press strip, first screw jack, first bolt lower end, first bolt upper end, second screw jack, second bolt lower end, second bolt upper end, ingate, cross gate are located at down on the greensand mold; First bolt lower end is inserted in the first screw jack; Second bolt bolt lower end is inserted in the second bolt hole; Sprue is located on the greensand mold, and with detachable sandbox and the single sand shop sand molding of clay-bonded sand greensand mold, last greensand mold and following greensand mold are with case outside fix finger setting mould assembly; The electro-smelting furnace charge; The molten iron of the 2 wear-resistant white cast rice huller screen sheet press strip of castingin bolt advances people's sprue and advances people's cross gate and enter to be full of behind people's ingate rice huller screen sheet press strip die cavity and castingin first, second bolt upper end.
2. clay-bonded sand greensand mold system sand is that casting uses the silica sand granularity to be 20-40 order clay-bonded sand greensand mold system sand.
3. the 2 wear-resistant white cast rice huller screen sheet press strip of castingin bolt according to claim 1; It is characterized in that: the chemical composition of casting 2 wear-resistant white cast rice huller screen sheet press strip: C:3.5-3.8%, Si :≤0.6%, Mn:0.15-0.20%; P :≤0.3%, S:0.2-0.4%.
4. the 2 wear-resistant white cast rice huller screen sheet press strip of castingin bolt according to claim 1 is characterized in that: the metallographic structure of the 2 wear-resistant white cast rice huller screen sheet press strip of castingin bolt is cementite+casting light body.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110399853 CN102489685B (en) | 2011-11-26 | 2011-11-26 | Wear-resistant white cast iron rice sieve batten |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110399853 CN102489685B (en) | 2011-11-26 | 2011-11-26 | Wear-resistant white cast iron rice sieve batten |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102489685A true CN102489685A (en) | 2012-06-13 |
| CN102489685B CN102489685B (en) | 2013-06-12 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110399853 Expired - Fee Related CN102489685B (en) | 2011-11-26 | 2011-11-26 | Wear-resistant white cast iron rice sieve batten |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102489685B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276743A (en) * | 2013-07-05 | 2015-01-14 | 陈硕 | Method for casting vermicular graphite cast iron glass bottle split mold |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07328457A (en) * | 1994-06-09 | 1995-12-19 | Hosokawa Seisakusho:Kk | Resistance device of once-through type rice milling machine |
| CN2269897Y (en) * | 1996-08-16 | 1997-12-10 | 郭金龙 | Depression bar for rice polisher |
| CN2390689Y (en) * | 1999-11-30 | 2000-08-09 | 姚代书 | Rice milling house assembly with rectangular cross-section depression bar |
| JP2010274164A (en) * | 2009-05-26 | 2010-12-09 | Zojirushi Corp | Rice polishing machine |
| CN202415660U (en) * | 2011-11-26 | 2012-09-05 | 刘之增 | Wear-resistant white cast iron rice sieve sheet pressure strip with inserted-cast bolts |
-
2011
- 2011-11-26 CN CN 201110399853 patent/CN102489685B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07328457A (en) * | 1994-06-09 | 1995-12-19 | Hosokawa Seisakusho:Kk | Resistance device of once-through type rice milling machine |
| CN2269897Y (en) * | 1996-08-16 | 1997-12-10 | 郭金龙 | Depression bar for rice polisher |
| CN2390689Y (en) * | 1999-11-30 | 2000-08-09 | 姚代书 | Rice milling house assembly with rectangular cross-section depression bar |
| JP2010274164A (en) * | 2009-05-26 | 2010-12-09 | Zojirushi Corp | Rice polishing machine |
| CN202415660U (en) * | 2011-11-26 | 2012-09-05 | 刘之增 | Wear-resistant white cast iron rice sieve sheet pressure strip with inserted-cast bolts |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104276743A (en) * | 2013-07-05 | 2015-01-14 | 陈硕 | Method for casting vermicular graphite cast iron glass bottle split mold |
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| Publication number | Publication date |
|---|---|
| CN102489685B (en) | 2013-06-12 |
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|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
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| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: NANTONG HONGDE ELECTROMECHANICAL CO., LTD. Free format text: FORMER OWNER: LIU ZHIZENG Effective date: 20131111 |
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| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 272500 JINING, SHANDONG PROVINCE TO: 226300 NANTONG, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20131111 Address after: Tongzhou District four An Zhen Qi Jia Qiao 226300 Jiangsu city of Nantong Province in four groups Patentee after: Nantong Hongde Mechanical Co., Ltd. Address before: 272500 Shandong province Wenshang County in North Street No. 1518 Patentee before: Liu Zhizeng |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130612 Termination date: 20131126 |