CN104550858A - Novel ZCuSnlOPI alloy casting technology - Google Patents
Novel ZCuSnlOPI alloy casting technology Download PDFInfo
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- CN104550858A CN104550858A CN201310505763.7A CN201310505763A CN104550858A CN 104550858 A CN104550858 A CN 104550858A CN 201310505763 A CN201310505763 A CN 201310505763A CN 104550858 A CN104550858 A CN 104550858A
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- copper
- charcoal
- zcusnlopi
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- phosphor
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- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
The invention discloses a novel ZCuSnlOPI alloy casting technology. The novel ZCuSnlOPI alloy casting technology comprises the following steps of coating various types of raw materials, smelting tools, casting ladles and the like by using coatings; thoroughly baking and preheating the raw materials, the smelting tools, the casting ladles and the like; baking an empty melting furnace for 0.5-1 hour; adding charcoal in the melting furnace after the charcoal is subjected to destructive distillation under the condition that the charcoal sufficiently covers the liquid level of copper liquid; placing 80% of phosphor copper on the charcoal so that the phosphor copper is well absorbed by the copper liquid and air is removed effectively in a melting process; pressing the phosphor copper by using electrolysis copper plates or scrap returns; adding a small amount of scrap returns in the furnace and then adding tin in the furnace when the temperature of the copper liquid rises to 1200 DEG C or so; adding the rest phosphor copper in the furnace; sufficiently stirring the mixture in the furnace; removing covering agents and oxidizing slag on the surface of the copper liquid; and examining the quality of the copper liquid. The ZCuSnlOPI alloy casting technology has the advantages that various types of mechanical properties are improved.
Description
Technical field
The invention belongs to alloy cast iron casting technology field, be specifically related to a kind of ZCuSnlOPI Alloys Casting new technology.
Background technology
ZCuSn1OPI alloy tool has good wearability and very high hardness, is widely used in that rotating speed is high, load heavy, the part such as gear, worm gear, axle sleeve of severe friction.But containing very high tin and higher phosphorus in this alloy. easily produce " sweating " (inverse segregation) or " convex rise " during casting, the mechanical performance of foundry goods significantly being reduced and even scraps, is a kind of tin bronze of very difficult casting.Therefore, herein in the production of this kind of alloy, shown that some effective ways solve ZCuSnlOPI alloy " sweating " and " convex rise " by a large amount of practices.
Summary of the invention
In order to overcome the problems referred to above that prior art field exists, the object of the invention is to, a kind of ZCuSnlOPI Alloys Casting new technology is provided.
ZCuSnlOPI Alloys Casting new technology provided by the invention, this method is a preparation ZCuSnl0PI Alloys Casting technique of development in recent years, is also attributable to casting by its principle.Various raw material, melting instrument, casting ladle etc. are brushed coating thoroughly toast and preheating, the charcoal after dry staying is added with after the empty bake oven of melting furnace bakes 0.5 ~ 1 hour, the addition of charcoal is fully to cover copper liquid liquid level for principle, again the phosphor copper of 80% is placed on charcoal, well to be absorbed by copper liquid in fusion process and effectively to degas.Electrolytic copper plate or foundry returns is pressed above phosphor-copper, when copper liquid temperature rises to about 1200 DEG C, tin is added after adding a small amount of foundry returns again. finally add remaining phosphor copper, remove coverture and the oxidizing slag on copper liquid surface after fully stirring, then carry out the quality examination of copper liquid.
ZCuSnlOPI Alloys Casting new technology provided by the invention, its beneficial effect is: every mechanical property is improved and improves.
Detailed description of the invention
Below in conjunction with embodiment, to ZCuSnlOPI Alloys Casting new technology provided by the invention, be described in detail.
Embodiment one
Various raw material, melting instrument, casting ladle etc. are brushed coating thoroughly toast and preheating, the charcoal after dry staying is added with after the empty bake oven of melting furnace bakes 0.5 ~ 1 hour, the addition of charcoal is fully to cover copper liquid liquid level for principle, again the phosphor copper of 80% is placed on charcoal, well to be absorbed by copper liquid in fusion process and effectively to degas.Press electrolytic copper plate or foundry returns above phosphor-copper, when copper liquid temperature rises to about 1200 DEG C, then add tin after adding a small amount of foundry returns.Finally add remaining phosphor copper, remove coverture and the oxidizing slag on copper liquid surface after fully stirring, then carry out the quality examination of copper liquid.
Tolerance checks, refractory brick is cut a hole a upper base be 100mm, go to the bottom as 40mm, the high round platform nest for 50mm or the sample cup making a same size with sand mold, thorough oven dry, being poured in sample cup by the copper liquid melted allows it solidify, surface is recessed is qualified, and surfacing or projection, show there is gas in aluminium alloy or has a large amount of gas to be defective, now also to carry out deoxidation and degassing processing, come out of the stove again after qualified.
The copper liquid melted pours in bent angle sample mold by bent angle inspection, and bent angle sample mold adopts metal mold, radius
For 5mm. length is 120mm.When the molten metal temperature in sample mold is down to about 450 DEG C, metal color just loses redness, if temporally calculate, about 25 seconds are counted from during cast, at this moment by sample hardening, then specimen holder is interrupted on bench vice, fracture about 45 °, angle, if otherwise bent angle is excessive should suitably add some tin. then add some cathode coppers.
Fracture surface examination generally does fracture surface examination with bent angle sample.The sand mold sample that also can be 20 × 120mm carries out fracture surface examination.After sample fractures, fracture color be khaki slightly redly, macrostructure is fine and closely woven, even, segregation-free, pore and slag inclusion are qualified, can suitably add if defective some phosphor-coppers again deoxidation or add a little refining agent slagging-off.
Claims (1)
1. a ZCuSnlOPI Alloys Casting new technology, it is characterized in that: various raw material, melting instrument, casting ladle etc. are brushed coating and thoroughly toasts and preheating, the charcoal after dry staying is added with after the empty bake oven of melting furnace bakes 0.5 ~ 1 hour, the addition of charcoal is fully to cover copper liquid liquid level for principle, again the phosphor copper of 80% is placed on charcoal, well to be absorbed by copper liquid in fusion process and effectively to degas; Press electrolytic copper plate or foundry returns above phosphor-copper, when copper liquid temperature rises to about 1200 DEG C, then add tin after adding a small amount of foundry returns; Finally add remaining phosphor copper, remove coverture and the oxidizing slag on copper liquid surface after fully stirring, then carry out the quality examination of copper liquid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310505763.7A CN104550858A (en) | 2013-10-24 | 2013-10-24 | Novel ZCuSnlOPI alloy casting technology |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310505763.7A CN104550858A (en) | 2013-10-24 | 2013-10-24 | Novel ZCuSnlOPI alloy casting technology |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104550858A true CN104550858A (en) | 2015-04-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310505763.7A Pending CN104550858A (en) | 2013-10-24 | 2013-10-24 | Novel ZCuSnlOPI alloy casting technology |
Country Status (1)
| Country | Link |
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| CN (1) | CN104550858A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138713A (en) * | 2017-05-15 | 2017-09-08 | 上海中洲特种合金材料股份有限公司 | A kind of casting method of tin bronze valve type casting |
-
2013
- 2013-10-24 CN CN201310505763.7A patent/CN104550858A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107138713A (en) * | 2017-05-15 | 2017-09-08 | 上海中洲特种合金材料股份有限公司 | A kind of casting method of tin bronze valve type casting |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150429 |