CN1181940C - Cast piece forming and hardening method - Google Patents
Cast piece forming and hardening method Download PDFInfo
- Publication number
- CN1181940C CN1181940C CNB021141614A CN02114161A CN1181940C CN 1181940 C CN1181940 C CN 1181940C CN B021141614 A CNB021141614 A CN B021141614A CN 02114161 A CN02114161 A CN 02114161A CN 1181940 C CN1181940 C CN 1181940C
- Authority
- CN
- China
- Prior art keywords
- casting
- pastel
- consolidation liquid
- sand
- heavy
- 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.)
- Expired - Fee Related
Links
- 238000000034 method Methods 0.000 title claims abstract description 24
- 238000005266 casting Methods 0.000 claims abstract description 40
- 239000007788 liquid Substances 0.000 claims abstract description 19
- TWRXJAOTZQYOKJ-UHFFFAOYSA-L Magnesium chloride Chemical compound [Mg+2].[Cl-].[Cl-] TWRXJAOTZQYOKJ-UHFFFAOYSA-L 0.000 claims abstract description 14
- 238000000465 moulding Methods 0.000 claims abstract description 9
- 239000000463 material Substances 0.000 claims abstract description 8
- 229910001629 magnesium chloride Inorganic materials 0.000 claims abstract description 7
- CPLXHLVBOLITMK-UHFFFAOYSA-N Magnesium oxide Chemical compound [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 claims description 22
- 239000004576 sand Substances 0.000 claims description 19
- 238000007596 consolidation process Methods 0.000 claims description 17
- 239000000395 magnesium oxide Substances 0.000 claims description 11
- 229940037003 alum Drugs 0.000 claims description 6
- 238000002425 crystallisation Methods 0.000 claims description 6
- 230000008025 crystallization Effects 0.000 claims description 6
- 238000002360 preparation method Methods 0.000 claims description 6
- 238000003756 stirring Methods 0.000 claims description 6
- 239000000919 ceramic Substances 0.000 claims description 5
- 235000019353 potassium silicate Nutrition 0.000 claims description 5
- NTHWMYGWWRZVTN-UHFFFAOYSA-N sodium silicate Chemical compound [Na+].[Na+].[O-][Si]([O-])=O NTHWMYGWWRZVTN-UHFFFAOYSA-N 0.000 claims description 5
- 208000034189 Sclerosis Diseases 0.000 claims description 3
- 239000012188 paraffin wax Substances 0.000 claims description 3
- 206010039509 Scab Diseases 0.000 abstract description 5
- 238000004519 manufacturing process Methods 0.000 abstract description 5
- 239000013078 crystal Substances 0.000 abstract 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229910021652 non-ferrous alloy Inorganic materials 0.000 description 2
- 238000004663 powder metallurgy Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000012958 reprocessing Methods 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- 208000037656 Respiratory Sounds Diseases 0.000 description 1
- 239000011247 coating layer Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
Landscapes
- Mold Materials And Core Materials (AREA)
Abstract
The present invention discloses a cast piece forming and hardening method which is used by different kinds of casting industries. A forming and solidifying liquid containing 20% to 40% of crystal magnesium chloride is prepared into paste with the specific weight of 10 DEG to 40 DEG, and originally auxiliary materials are added in the solidifying liquid according to different casting processes and are processed according to basic programs applied to various casting methods. The method has the advantages of simple moulding, low cost, high precision and roughness of products, no adhering sands, no scab and no limitation of the degree of the complexity and the weight of the products in the forming process, and can realize automatic production and mechanization production. In addition, the present invention can be applied to various casting industries.
Description
Technical field
The present invention relates to the metal product duplication process medium casting forming and hardening method that foundry industry uses.
Background technology
The metal product duplication process that existing foundry industry uses comprises water-glass sand model casting, ceramic mold casting, powder metallurgy sintered casting etc., but its product surface of water-glass sand model casting is coarse, precision is not high, scab, scab, coating layer thickness is difficult grasps; Its process of ceramic mold casting is wayward, and fragility greatly, easily produces big crackle, cost height, is difficult to realize automatic and mechanical production; Powder metallurgy sintered Casting Equipment investment is big, the cost height; The method that in prior art, does not also have the foundry goods forming and hardening.
Summary of the invention
The object of the present invention is to provide that a kind of moulding is simple, cost is low, application is wide, product precision height, not scab, do not scab, restriction that forming process is not subjected to product complexity and weight, can realize automation, mechanization production, can be applied to the foundry goods forming and hardening method of various foundry industries.
When the present invention is used for water-glass sand model casting moulding, may further comprise the steps:
(1) preparation casting consolidation liquid: crystallization magnesium chloride 20-65%, alum 1-3%, to add water and be made into the proportion of measuring with densimeter be the pastel of 10-40 degree;
(2) allocate above casting consolidation liquid into heavy-burned magnesia, dry sand, its weight ratio is: consolidation liquid: heavy-burned magnesia: dry sand=1: 2-4: 5-8, and stir into pastel;
(3) the paraffin wax model rolls or is coated with in pastel sand material or carries out moulding;
(4) harden, fusible pattern, oven dry supervisor;
(5) foundry goods of casting being gone into stove with casting mold heat-treats;
(6) sand removal.
With the product precision height that this method casts out, can obtain the product of Ra1.6-302 μ m surface roughness, nonferrous alloy can cast out meticulous decorative pattern, not reprocessing or few processing.
The present invention is applied to the ceramic mold casting forming and hardening method, may further comprise the steps:
(1) preparation casting consolidation liquid: crystallization magnesium chloride 20-65%, alum 1-3%, to add water and be made into the proportion of measuring with densimeter be the pastel of 10-40 degree;
(2) allocate above casting consolidation liquid into heavy-burned magnesia, its weight ratio is a consolidation liquid: heavy-burned magnesia=1: 7-12, and stir into pastel;
(3) master mold grouting;
(4) bubble, sclerosis, molding, oven dry supervisor are removed in vibrations;
(5) foundry goods of casting being gone into stove with casting mold heat-treats;
(6) sand removal.
Product precision height, the forming process that casts out with this method is easy to control, the raw and auxiliary material cost is low, can realize automation, mechanization production.
This method can also be applied to other casting method.
The specific embodiment
Embodiment 1: water-glass sand model casting
(1) preparation casting consolidation liquid: crystallization magnesium chloride 30Kg, alum 2Kg, add water 100Kg and be made into the pastel that the proportion of measuring with densimeter is 10 degree;
(2) allocate above consolidation liquid 10Kg into raw and auxiliary material heavy-burned magnesia 30Kg, dry sand 60Kg; And stir into pastel;
(3) the paraffin wax model rolls in pastel sand material;
(4) harden, fusible pattern, oven dry supervisor;
(5) foundry goods of casting being gone into stove with casting mold heat-treats;
(6) sand removal.
With the product precision height that this method casts out, can obtain the product of Ra1.6-3.2 μ m surface roughness, nonferrous alloy can cast out meticulous decorative pattern, not reprocessing or few processing.
Embodiment 2: ceramic mold casting
(1) preparation casting consolidation liquid, crystallization magnesium chloride 50Kg, alum 3Kg, to add water 100Kg and be made into the proportion of measuring with densimeter be 40 ° pastel;
(2) allocate above casting consolidation liquid into heavy-burned magnesia, its weight ratio is: consolidation liquid: heavy-burned magnesia=1: 7-12, and stir into pastel;
(3) master mold grouting;
(4) bubble, sclerosis, molding, oven dry supervisor are removed in vibrations;
(5) foundry goods of casting being gone into stove with casting mold heat-treats;
(6) sand removal.
With the product precision height that this method casts out, forming process is easy to control, is not subjected to the restriction, moulding of product complexity and weight simple, the raw and auxiliary material cost is low, can realize that automation, mechanization produces.
Claims (2)
1. water-glass sand model casting forming and hardening method is characterized in that may further comprise the steps:
(1) preparation casting consolidation liquid: crystallization magnesium chloride 20-65%, alum 1-3%, Jia Shui are made into densimeter and measure the pastel that proportion reaches the 10-40 degree;
(2) allocate above consolidation liquid into raw and auxiliary material heavy-burned magnesia and dry sand, and press consolidation liquid: heavy-burned magnesia: dry sand=1: 2-4: 5-8, stir into pastel;
(3) the paraffin wax model rolls or is coated with in pastel sand material or carries out moulding;
(4) harden, fusible pattern, oven dry supervisor;
(5) foundry goods of casting being gone into stove with casting mold heat-treats;
(6) sand removal.
2. ceramic mold casting forming and hardening method is characterized in that may further comprise the steps:
(1) preparation casting consolidation liquid: crystallization magnesium chloride 20-65%, alum 1-3%, Jia Shui are made into densimeter and measure the pastel that proportion reaches the 10-40 degree;
(2) allocate above casting consolidation liquid into heavy-burned magnesia, its weight ratio is a consolidation liquid: heavy-burned magnesia=1: 7-12, and stir into pastel;
(3) master mold grouting;
(4) bubble, sclerosis, molding, oven dry supervisor are removed in vibrations;
(5) foundry goods of casting being gone into stove with casting mold heat-treats;
(6) sand removal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021141614A CN1181940C (en) | 2002-05-29 | 2002-05-29 | Cast piece forming and hardening method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB021141614A CN1181940C (en) | 2002-05-29 | 2002-05-29 | Cast piece forming and hardening method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1392007A CN1392007A (en) | 2003-01-22 |
| CN1181940C true CN1181940C (en) | 2004-12-29 |
Family
ID=4742978
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB021141614A Expired - Fee Related CN1181940C (en) | 2002-05-29 | 2002-05-29 | Cast piece forming and hardening method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1181940C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103182470A (en) * | 2013-03-22 | 2013-07-03 | 伟成金属制品有限公司 | Mold manufacturing process in investment casting |
-
2002
- 2002-05-29 CN CNB021141614A patent/CN1181940C/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| CN1392007A (en) | 2003-01-22 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Application publication date: 20030122 Assignee: Wuhu Rong Chuan Wind Power Machinery Fittings Co., Ltd. Assignor: Qin Zhonglin Contract record no.: 2010340000037 Denomination of invention: Cast piece forming and hardening method Granted publication date: 20041229 License type: Exclusive License Record date: 20100408 |
|
| ASS | Succession or assignment of patent right |
Owner name: HU NAN CHENZHOU MINING CO., LTD. Free format text: FORMER OWNER: QIN ZHONGLIN Effective date: 20110622 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: ADDRESS; FROM: 419607 NO. 69, WOXI VILLAGE, WOXI TOWN, YUANLING COUNTY, HU NAN PROVINCE TO: 419607 GUANZHUANG TOWN, YUANLING COUNTY, HU NAN PROVINCE |
|
| TR01 | Transfer of patent right |
Effective date of registration: 20110622 Address after: 419607, Yuanling County, Hunan Province town Patentee after: Hu'nan Chenzhou Mining Co., Ltd. Address before: 419607, No. 69, wo Xi village, wo Zhen Town, Yuanling County, Hunan Patentee before: Qin Zhonglin |
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| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20041229 Termination date: 20140529 |