CN200939499Y - Novel heating and warming riser sleeve - Google Patents
Novel heating and warming riser sleeve Download PDFInfo
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- CN200939499Y CN200939499Y CN 200620087543 CN200620087543U CN200939499Y CN 200939499 Y CN200939499 Y CN 200939499Y CN 200620087543 CN200620087543 CN 200620087543 CN 200620087543 U CN200620087543 U CN 200620087543U CN 200939499 Y CN200939499 Y CN 200939499Y
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Abstract
The utility model relates to a cast heat preservation rising sleeve used in riser feeding, in particular to a heat manufacture and preservation bush applied in the cast with riser feeding problems, such as nodular cast iron and cast steel. The utility model is characterized in comprising a heating layer and a heat preservation layer, while the heat manufacture layer is bound to the inner wall of the heat preservation layer, and the heat manufacture layer has the heating material which will generate heat when meets high temperature liquid metal. The utility model can determine the specification size and the addition amount of the calorific agent and gas former inside the rising sleeve according to the characteristics of the position that need riser feeding, or the addition amount of the calorific agent can be adjusted by controlling the parameters such as the thickness of the heat manufacture layer or the viscosity of the dope, the utility model can effectively control heat manufacturing, the heat manufacture and gas form process of the gas former and the speed of gas forming, so as to meet the high temperature and pressure demand of the riser liquid metal for riser feeding. In addition, the utility model also has the advantages of simple preparation process, low cost high intensity and good applicability etc.
Description
(1) technical field under
The utility model relates to a kind of feeding a casting insulating riser sleeve, particularly a kind of novel heat preservation riser buss that is applied on the difficult feeding foundry goods such as magnesium iron, cast steel.
(2) background technology
In steel-casting, magnesium iron and non-ferrous alloy solidification shrinkage stage, as when adopting common rising head to carry out feeding, the volume of required rising head is bigger, and the molten metal consumption is big and utilization rate is low, only reach about 14%, and the feeding effect is bad.For improving using rate of metal, reduce production costs, especially adopt the special-purpose thermal insulation riser buss to improve the feeding effect mostly in the Steel Castings in the Foundry Production at present.
Be the better feeding effect that realizes insulating riser sleeve, when actual Steel Castings, pour and finish the back to the top of insulated feeder interpolation exothermic mixture through being everlasting, by the exothermic reaction of exothermic mixture, make rising head inner metal liquid temperature be higher than the temperature at the feeding position of wanting in the foundry goods.This technology has improved the feeding a casting effect to a certain extent, but this adding mode of exothermic mixture causes exothermic material mostly in the molten metal surface reaction easily, reaction speed is fast, and the extent of reaction is wayward, serious heat loss etc., and this exothermic mixture adds mode and can only be applied on the open riser, is difficult to realize concerning blind riser.
Another preparation method of heat preservation rising head makes slip together with exothermic material and insulation material mixing, and the mode of compression moulding or employing vacuum suction filter prepares bright, dark insulating riser sleeve.The main feature of this method is that heating material and insulation material are mixed preparation, although this production technology operation is simple, but, all bring adverse effect for the heat insulation effect and the heating effect of riser buss because two kinds of different qualities materials with function are mixed the preparation riser buss.Its shortcoming mainly is that exothermic material is wasteful, and stock utilization is low.This is because clutch gold liquid at a distance in the riser buss, and be mixed in the exothermic material in the insulation material because this place's temperature is low, do not reach the temperature of required combustion reaction, make it to bring into play heating functioin, cause the waste of exothermic material, near the actual exothermic material of riser buss inwall that has only that works is producing heat.In addition, also can bring the decline of insulation effect to a certain extent, also can cause shortcomings such as riser buss intensity reduction to insulation material.
(3) summary of the invention
The utility model is in order to overcome heat preservation riser buss deficiency structurally in the past, a kind of novel heat preservation riser buss is provided, has easy to makely, the exothermic mixture use amount is few, heating efficiency height and exothermic mixture addition are controlled, applicable to advantages such as bright, the blind riser covers of different shape.
The utility model insulation heating riser buss is realized by following measure:
Insulating and heating riser cover of the present utility model, its special feature is: be made up of heat-insulation layer and heating layer, heating layer is bonded on the inwall of heat-insulation layer, and heating layer contains meets the exothermic material that high-temperature liquid metal is produced heat.
Riser buss of the present utility model, the thickness of described heating layer is generally 0.1～1.5mm.
The utility model riser buss is applicable to bright, the blind riser cover of different shape, as spherical feeder cover, cylindrical riser buss, oval shape etc.The blind riser cover need be reserved pore, and the venthole size is decided according to the rising head volume.Diameter is generally at 5～10mm.
The utility model heat preservation riser buss, its preparation method is: the slurry that the exothermic material of certain proportioning is deployed into suitable viscosity, wherein the slurry carrier can be water base or alcohol radical, and slurry is brushed at the top or the peripheral position of insulating riser sleeve, subsequently riser buss is carried out drying and handles.
The insulation material of the utility model riser buss can be materials such as fibrous material, cenosphere powder, flyash, perlite, bentonite and waterglass.Exothermic mixture in the heating layer can be aluminium powder, iron oxide, sodium nitrate, the outer adding additives of graphite powder etc.
The beneficial effects of the utility model are, can want the characteristics at feeding position to determine the specification of riser buss and the addition of overlapping internal heat generation, foaming agent according to steel-casting, and by controlling the addition that parameters such as living hot coating thickness or coating viscosity are regulated exothermic mixture, can effectively control heating, the raising rate of heating, foaming agent, satisfy needed high temperature of riser metal liquid feeding and pressure, the exothermic mixture utilization rate is reached about 75%.In addition, riser buss of the present utility model also has outstanding advantages such as preparation technology is simple, cost is low, intensity is high, applicability is strong.
(4) description of drawings
Fig. 1 is a kind of structural representation of the utility model open riser cover
Fig. 2 is a kind of structural representation of the utility model blind riser cover
Among the figure, 1 riser buss, 2 heat-insulation layers, 3 heating layers, 4 ventholes.
(5) specific embodiment
Below in conjunction with the drawings and specific embodiments the utility model being done one specifies.
As Fig. 1 is the structural representation of cylindrical open riser cover, and riser buss 1 is made up of heat-insulation layer 2 and heating layer 3.The internal diameter of riser buss is 100mm, and external diameter is 120mm, and height is 200mm.
The preparation method is: heat-insulation layer 2 is generally made by materials such as fibrous material, cenosphere powder, flyash, perlite, bentonite and waterglass.The exothermic material of heating layer 3 is to be mixed with sodium metasilicate liquid by materials such as aluminium powder, iron oxide, sodium nitrate, carbon dusts, and it is thick to add certain water furnishing, brushes on the riser buss inwall, gets final product behind the bake drying, and bake out temperature is at 150～200 ℃.The thickness of heating layer is 1mm.
As Fig. 2 is the structural representation of cylindrical blind riser, brushes the thick heating layer 3 of last layer 0.4mm on the inwall of heat preservation riser buss 1.The internal diameter of rising head is 100mm, and external diameter is 120mm, and height is 150mm, and the diameter of venthole 4 is 5mm.
The preparation method is the same.
Be the superiority of checking the utility model heat tracing riser buss on the feeding a casting performance, the spy carries out following contrast experiment, the contrast object is: ordinary resin sand sand mold riser buss, common heat preservation riser buss, the utility model heat preservation riser buss, three kinds of riser buss dimensions are identical, apparent size all as shown in Figure 1, wherein the addition of exothermic mixture is 150g.Experimental condition is: pouring temperature is 1520 ℃ a cylinder steel castings, and be 90 seconds the duration of pouring, and always watering fluence is 250 kilograms.Result of the test is as follows:
| The rising head classification | The sand mold rising head | The heat preservation rising | Embodiment | 1 riser buss |
| Rising head setting time (second) | 180 | 235 | 275 | |
| Shrinkage porosite shrinkage cavity defect rate | 9.8％ | 6.5％ | 4.6％ |
This result of the test shows: compare with the sand mould material rising head, riser buss setting time of the present utility model prolongs 52.8%, and shrinkage porosite, shrinkage cavity defect rate have descended 73.5%; Compare with common heat preservation rising head, rising head setting time of the present invention prolongs 17.0%, and shrinkage porosite, shrinkage cavity defect rate have descended 29.2%, and this invention heat preservation riser feeding effect is remarkable, has bigger advantage.
Claims (3)
1. heat preservation riser buss, it is characterized in that: be made up of heat-insulation layer and heating layer, heating layer is bonded on the inwall of heat-insulation layer, and heating layer contains meets the exothermic material that high-temperature liquid metal is produced heat.
2. riser buss according to claim 1 is characterized in that: the thickness of described heating layer is 0.1～1.5mm.
3. riser buss according to claim 1 and 2 is characterized in that: described riser buss is open riser cover or blind riser cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087543 CN200939499Y (en) | 2006-08-07 | 2006-08-07 | Novel heating and warming riser sleeve |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620087543 CN200939499Y (en) | 2006-08-07 | 2006-08-07 | Novel heating and warming riser sleeve |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200939499Y true CN200939499Y (en) | 2007-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620087543 Expired - Lifetime CN200939499Y (en) | 2006-08-07 | 2006-08-07 | Novel heating and warming riser sleeve |
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| CN (1) | CN200939499Y (en) |
Cited By (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102091759A (en) * | 2011-03-15 | 2011-06-15 | 中核苏阀横店机械有限公司 | Heat insulation blind riser |
| WO2012042456A1 (en) * | 2010-09-30 | 2012-04-05 | Casas Del Valle Barros Hnos. Ltda. | Bushing comprising composite layers |
| CN104148612A (en) * | 2014-08-25 | 2014-11-19 | 陕西法士特汽车传动集团有限责任公司 | Feeder head coating structure and treatment method of aluminum alloy low-pressure cast |
| CN104359710A (en) * | 2014-11-13 | 2015-02-18 | 东北大学 | Automatic-demoulding molten steel sampler and use method thereof |
| CN104368761A (en) * | 2014-11-18 | 2015-02-25 | 贵州安吉航空精密铸造有限责任公司 | Heating and thermal insulation riser sleeve |
| CN105562609A (en) * | 2015-05-25 | 2016-05-11 | 江苏卡斯美特铸造科技有限公司 | Insulating riser and manufacture method thereof |
| CN105689648A (en) * | 2016-04-06 | 2016-06-22 | 郑州远东耐火材料有限公司 | Exothermic riser casting sand mold of fused alumina zirconia non-shrinkage brick |
| CN108057845A (en) * | 2017-12-12 | 2018-05-22 | 重庆乐迪机车车辆配件有限公司 | A kind of novel heat insulation exothermic riser |
| CN108453219A (en) * | 2018-03-29 | 2018-08-28 | 西峡县西泵特种铸造有限公司 | A kind of design method of heat preservation riser |
| CN110170616A (en) * | 2019-05-30 | 2019-08-27 | 共享装备股份有限公司 | Heat preservation riser and preparation method thereof |
| CN112808940A (en) * | 2021-02-08 | 2021-05-18 | 洛阳洛北重工机械有限公司 | Composite riser sleeve for feeding large steel casting |
-
2006
- 2006-08-07 CN CN 200620087543 patent/CN200939499Y/en not_active Expired - Lifetime
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012042456A1 (en) * | 2010-09-30 | 2012-04-05 | Casas Del Valle Barros Hnos. Ltda. | Bushing comprising composite layers |
| CN102091759A (en) * | 2011-03-15 | 2011-06-15 | 中核苏阀横店机械有限公司 | Heat insulation blind riser |
| CN104148612A (en) * | 2014-08-25 | 2014-11-19 | 陕西法士特汽车传动集团有限责任公司 | Feeder head coating structure and treatment method of aluminum alloy low-pressure cast |
| CN104359710B (en) * | 2014-11-13 | 2017-04-05 | 东北大学 | A kind of automatic demoulding molten steel sampler and its using method |
| CN104359710A (en) * | 2014-11-13 | 2015-02-18 | 东北大学 | Automatic-demoulding molten steel sampler and use method thereof |
| CN104368761A (en) * | 2014-11-18 | 2015-02-25 | 贵州安吉航空精密铸造有限责任公司 | Heating and thermal insulation riser sleeve |
| CN104368761B (en) * | 2014-11-18 | 2016-08-31 | 贵州安吉航空精密铸造有限责任公司 | A kind of heat preservation riser buss |
| CN105562609A (en) * | 2015-05-25 | 2016-05-11 | 江苏卡斯美特铸造科技有限公司 | Insulating riser and manufacture method thereof |
| CN105689648A (en) * | 2016-04-06 | 2016-06-22 | 郑州远东耐火材料有限公司 | Exothermic riser casting sand mold of fused alumina zirconia non-shrinkage brick |
| CN108057845A (en) * | 2017-12-12 | 2018-05-22 | 重庆乐迪机车车辆配件有限公司 | A kind of novel heat insulation exothermic riser |
| CN108453219A (en) * | 2018-03-29 | 2018-08-28 | 西峡县西泵特种铸造有限公司 | A kind of design method of heat preservation riser |
| CN110170616A (en) * | 2019-05-30 | 2019-08-27 | 共享装备股份有限公司 | Heat preservation riser and preparation method thereof |
| CN112808940A (en) * | 2021-02-08 | 2021-05-18 | 洛阳洛北重工机械有限公司 | Composite riser sleeve for feeding large steel casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Jinan Shengquan Beijin Ceramic Filter Co., Ltd. Assignor: Shengquan Group Co., Ltd., Ji'nan City Contract record no.: 2011370000140 Denomination of utility model: Novel heating and warming riser sleeve Granted publication date: 20070829 License type: Exclusive License Record date: 20110428 |
|
| ASS | Succession or assignment of patent right |
Owner name: JINAN SHENGQUAN BEIJIN CERAMIC FILTER CO., LTD. Free format text: FORMER OWNER: SHENGQUAN GROUP CO. LTD., JINAN Effective date: 20111227 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20111227 Address after: 250204 Zhangqiu chemical industry park, Shandong, Ji'nan Patentee after: Jinan Shengquan Beijin Ceramic Filter Co., Ltd. Address before: 250204 Zhangqiu chemical industry park, Shandong, Ji'nan Patentee before: Shengquan Group Co., Ltd., Ji'nan City |
|
| CX01 | Expiry of patent term |
Granted publication date: 20070829 |
|
| EXPY | Termination of patent right or utility model |