TWI417391B - Slag conditioner composition and method of using the same - Google Patents
Slag conditioner composition and method of using the same Download PDFInfo
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- TWI417391B TWI417391B TW99133212A TW99133212A TWI417391B TW I417391 B TWI417391 B TW I417391B TW 99133212 A TW99133212 A TW 99133212A TW 99133212 A TW99133212 A TW 99133212A TW I417391 B TWI417391 B TW I417391B
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- 239000002893 slag Substances 0.000 title claims description 100
- 239000000203 mixture Substances 0.000 title claims description 50
- 238000000034 method Methods 0.000 title claims description 15
- XEEYBQQBJWHFJM-UHFFFAOYSA-N iron Substances [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 70
- 238000005266 casting Methods 0.000 claims description 54
- 229910000831 Steel Inorganic materials 0.000 claims description 34
- 239000003607 modifier Substances 0.000 claims description 34
- 239000010959 steel Substances 0.000 claims description 34
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims description 22
- 239000000292 calcium oxide Substances 0.000 claims description 19
- ODINCKMPIJJUCX-UHFFFAOYSA-N calcium oxide Inorganic materials [Ca]=O ODINCKMPIJJUCX-UHFFFAOYSA-N 0.000 claims description 19
- 229910018072 Al 2 O 3 Inorganic materials 0.000 claims description 11
- 229910004298 SiO 2 Inorganic materials 0.000 claims description 9
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- BRPQOXSCLDDYGP-UHFFFAOYSA-N calcium oxide Chemical compound [O-2].[Ca+2] BRPQOXSCLDDYGP-UHFFFAOYSA-N 0.000 claims description 7
- 229910000420 cerium oxide Inorganic materials 0.000 claims description 7
- BMMGVYCKOGBVEV-UHFFFAOYSA-N oxo(oxoceriooxy)cerium Chemical compound [Ce]=O.O=[Ce]=O BMMGVYCKOGBVEV-UHFFFAOYSA-N 0.000 claims description 7
- 239000011734 sodium Substances 0.000 claims description 7
- KKCBUQHMOMHUOY-UHFFFAOYSA-N sodium oxide Chemical compound [O-2].[Na+].[Na+] KKCBUQHMOMHUOY-UHFFFAOYSA-N 0.000 claims description 7
- 229910001948 sodium oxide Inorganic materials 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 description 24
- 238000002844 melting Methods 0.000 description 18
- 230000008018 melting Effects 0.000 description 18
- 230000006698 induction Effects 0.000 description 16
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 7
- 230000008569 process Effects 0.000 description 7
- 238000003723 Smelting Methods 0.000 description 6
- 239000003795 chemical substances by application Substances 0.000 description 6
- AMWRITDGCCNYAT-UHFFFAOYSA-L hydroxy(oxo)manganese;manganese Chemical compound [Mn].O[Mn]=O.O[Mn]=O AMWRITDGCCNYAT-UHFFFAOYSA-L 0.000 description 6
- 230000001965 increasing effect Effects 0.000 description 6
- 239000012535 impurity Substances 0.000 description 5
- 239000011819 refractory material Substances 0.000 description 5
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 239000002184 metal Substances 0.000 description 4
- WUKWITHWXAAZEY-UHFFFAOYSA-L calcium difluoride Chemical compound [F-].[F-].[Ca+2] WUKWITHWXAAZEY-UHFFFAOYSA-L 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 239000011572 manganese Substances 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- 229910004762 CaSiO Inorganic materials 0.000 description 2
- 235000019738 Limestone Nutrition 0.000 description 2
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 229910000019 calcium carbonate Inorganic materials 0.000 description 2
- 229910001634 calcium fluoride Inorganic materials 0.000 description 2
- 239000006028 limestone Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 239000002994 raw material Substances 0.000 description 2
- KRHYYFGTRYWZRS-UHFFFAOYSA-M Fluoride anion Chemical compound [F-] KRHYYFGTRYWZRS-UHFFFAOYSA-M 0.000 description 1
- 229910000805 Pig iron Inorganic materials 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000004090 dissolution Methods 0.000 description 1
- 239000010436 fluorite Substances 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000395 magnesium oxide Substances 0.000 description 1
- CPLXHLVBOLITMK-UHFFFAOYSA-N magnesium oxide Inorganic materials [Mg]=O CPLXHLVBOLITMK-UHFFFAOYSA-N 0.000 description 1
- AXZKOIWUVFPNLO-UHFFFAOYSA-N magnesium;oxygen(2-) Chemical compound [O-2].[Mg+2] AXZKOIWUVFPNLO-UHFFFAOYSA-N 0.000 description 1
- 229910052748 manganese Inorganic materials 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 238000000746 purification Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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- Manufacture And Refinement Of Metals (AREA)
Description
本發明係提供一種使用於鋼鐵鑄造過程中之組成物及使用方法，更詳而言之，有關一種可改變爐渣特性，達到提升熔煉效率之一種鑄造用爐渣改良劑組成物及其使用方法。The present invention provides a composition and a method for use in a steel casting process, and more particularly, a casting slag modifier composition which can change the slag characteristics and achieve a smelting efficiency, and a method of using the same.
傳統電爐鑄造廠熔鍊時是以廢鐵1或生鐵加上所需要目標成份之添加劑如(C、Si、Mn、P、S.....等元素)，於感應式熔解爐2內直接熔煉成鋼(鐵)液後，再澆鑄到模穴得到所需要的鑄件。The traditional electric furnace foundry is melted in the induction melting furnace 2 with scrap iron 1 or pig iron plus additives of the desired target components such as (C, Si, Mn, P, S.....) After being smelted into steel (iron) liquid, it is cast into a cavity to obtain the desired casting.
鑄造過程如第一圖及第二圖所示，過程中因廢鐵1及所添加之合金內含雜質產生之爐渣不易在熔解中被帶出，所以須經由一升溫程序將熔解溫度提高，使得鋼(鐵)水3中雜質受熱飄浮在鋼(鐵)水3上面形成爐渣4，藉此將感應式熔解爐2內雜質進行清除。習用之鑄造製程約有下列缺點：1、過程中部分爐渣4會浮於鋼(鐵)水3之表面，可用除渣劑等方式先行去除，其餘則散佈在鋼(鐵)水3中，需再經過升溫動作，使爐渣4浮上來以便再次清除。過程當中，若爐渣4過多，其浮在鋼(鐵)水3面時，與溫度較低的空氣接觸時，容易硬化結塊，形成架橋現象，如第二圖所示，使後續加入的廢鐵1無法順利沉入至感應式熔解爐2內，形成投料障礙，拖長總工作時間。且初步除渣完成後，鋼(鐵)水3須進行再次升溫與再除渣的動作，亦為浪費能源。2、少數鑄造業者會於熔煉程序中加入造渣劑，習知之造渣劑係以採用螢石(氟化鈣)或石灰石(碳酸鈣)為主要之造渣劑，但使用效果不佳，因會產生氟化物，對環保傷害甚鉅；而石灰石之造渣效果不佳，且需達到一定溫度才具有效益。3、若爐渣4殘留於爐壁上，爐渣4之清除不完全將使感應式熔解爐2之感應效果變差，如此需要耗費更多能源才能達到鑄造所需之溫度要求，亦造成能源與成本之浪費。4、若除渣未確實，爐渣4殘留於鋼(鐵)水3將使鋼(鐵)水3純化率降低，爐渣4之殘留使鐵原子之間之鍵結能力減弱，造成鋼鐵材料之延展性及強度變差，連帶降低後續鑄件良品率。5、爐渣4與爐襯5之耐火材料產生反應會降低爐襯5壽命。The casting process is as shown in the first figure and the second figure. In the process, the slag generated by the scrap iron 1 and the added impurities in the alloy is not easily taken out during the melting, so the melting temperature is increased by a heating program. The impurities in the steel (iron) water 3 are floated on the steel (iron) water 3 to form the slag 4, whereby the impurities in the induction melting furnace 2 are removed. The conventional casting process has the following disadvantages: 1. Part of the slag 4 will float on the surface of the steel (iron) water 3 in the process, and can be removed first by using a slag removing agent, and the rest is scattered in the steel (iron) water 3, After the temperature rising action, the slag 4 is floated up to be removed again. In the process, if the slag 4 is too much, it floats on the surface of the steel (iron) water, and when it comes into contact with the air with a lower temperature, it is easy to harden the agglomerate and form a bridging phenomenon, as shown in the second figure, so that the subsequent addition of waste Iron 1 cannot be successfully sunk into the induction melting furnace 2, forming a material barrier and prolonging the total working time. After the initial slag removal, the steel (iron) water 3 has to be heated again and re-slag, which is also a waste of energy. 2. A small number of foundry manufacturers will add slag-forming agent to the smelting process. The slag-forming agent is based on fluorite (calcium fluoride) or limestone (calcium carbonate) as the main slagging agent, but the effect is not good. Will produce fluoride, which is very harmful to the environment; and the limestone slag effect is not good, and it needs to reach a certain temperature to be effective. 3. If the slag 4 remains on the furnace wall, the incomplete removal of the slag 4 will deteriorate the induction effect of the induction melting furnace 2, so that it takes more energy to reach the temperature requirements required for casting, and also causes energy and cost. Waste. 4. If the slag removal is not confirmed, the residual slag 4 in the steel (iron) water 3 will reduce the purification rate of the steel (iron) water 3, and the residual of the slag 4 will weaken the bonding ability between the iron atoms, resulting in the extension of the steel material. Poorness and strength, and reduce the yield of subsequent castings. 5. The reaction of the slag 4 with the refractory material of the lining 5 reduces the life of the lining 5.
造渣就是在鑄造過程中加入稱為造渣劑的物質，如氟化鈣或碳酸鈣等，目的是將將鋼水中雜質分離出來，以便後續除渣程序。為解決習用鑄造製程產生之爐渣過多造成架橋現象而影響鋼水或鐵水等原料之投入，且爐渣黏附於感應式熔解爐爐襯與爐壁上會造成感應式熔解爐感應效果降低，且爐渣與爐襯產生反應亦會降低爐襯壽命，因此，本發明提供一種鑄造用爐渣改良劑組成物及其方法，藉以改變爐渣之特性並同時淨化鋼水或鐵水。The slagging is to add a substance called slag-forming agent, such as calcium fluoride or calcium carbonate, in the casting process, in order to separate the impurities in the molten steel for subsequent slag removal procedures. In order to solve the bridging phenomenon caused by too much slag caused by the conventional casting process, the input of raw materials such as molten steel or molten iron is affected, and the slag adheres to the furnace lining and the furnace wall of the induction melting furnace, which causes the induction melting furnace to reduce the induction effect, and the slag and the slag The reaction of the lining also reduces the life of the lining. Therefore, the present invention provides a slag modifier composition for casting and a method thereof for changing the characteristics of slag and simultaneously purifying molten steel or molten iron.
本發明係提供一種鑄造用爐渣改良劑組成物，其包括：由氧化鈣CaO、氧化鈉Na2 O、氧化鋁Al2 O3 以及二氧化矽SiO2 所組成之一組成物，且該組成物亦可包括氧化鐵Fe2 O3 。The present invention provides a casting slag modifier composition comprising: a composition consisting of calcium oxide CaO, sodium oxide Na 2 O, alumina Al 2 O 3 and cerium oxide SiO 2 , and the composition Iron oxide Fe 2 O 3 may also be included.
以及，一種鑄造用爐渣改良劑組成物使用方法，其特徵為使用上述之鑄造用爐渣改良劑組成物進行鋼鐵鑄造者。Further, a method for using a composition for casting slag modifier is characterized in that a steel smelter is cast using the above-described casting slag modifier composition.
本發明之主要目的在於該鑄造用爐渣改良劑組成物可與鑄造過程廢鋼鐵產生之爐渣結合，使爐渣軟化，改良習用造渣劑使用效果不佳之缺點。爐渣之主要成分為氧化鎂、氧化鐵與氧化錳，加入該組成物與爐渣反應後將使爐渣之鹽基度上升，造成爐渣內上述成分之鍵結力道減弱，使爐渣成分內的架橋鏈斷鍵，架橋鏈斷鍵之後的爐渣結構會變的鬆弛，達到軟化爐渣的目的。The main object of the present invention is that the slag modifier composition for casting can be combined with the slag produced by the scrap steel in the casting process to soften the slag and improve the disadvantages of the use of the conventional slag-forming agent. The main components of the slag are magnesium oxide, iron oxide and manganese oxide. When the composition is added to the slag, the base degree of the slag is increased, and the bonding force of the above components in the slag is weakened, so that the bridging chain in the slag component is broken. The slag structure after the key is broken and the bridge chain is broken will become slack, and the purpose of softening the slag is achieved.
本發明之次要目的在於該鑄造用爐渣改良劑組成物可增加爐渣之活性，並利用改良劑內含鋁成分降低爐渣內氧化鐵與氧化錳含量，藉此使爐渣軟化避免架橋現象之發生，其反應方程式如下：The secondary object of the present invention is that the slag modifier composition for casting can increase the activity of the slag, and reduce the content of iron oxide and manganese oxide in the slag by using the aluminum component in the modifier, thereby softening the slag to avoid bridging phenomenon. The reaction equation is as follows:
3MnO+3FeO+4Al→3Mn+3Fe+2Al2 O3 3MnO+3FeO+4Al→3Mn+3Fe+2Al 2 O 3
Al2 O3 +CaO→Al2 O3 ‧CaOAl 2 O 3 +CaO→Al 2 O 3 ‧CaO
CaO+SiO2 →CaSiO3 CaO+SiO 2 →CaSiO 3
Fe2 O3 +Fe→3FeOFe 2 O 3 +Fe→3FeO
Fe2 O3 +3 C→4 Fe+3 CO2 Fe 2 O 3 +3 C→4 Fe+3 CO 2
FeO+CO→Fe(鐵水)+CO2 FeO+CO→Fe(hot metal)+CO 2
Mn+FeO→MnO+Fe(鐵水)Mn+FeO→MnO+Fe(hot metal)
本發明之另一次要目的在於該鑄造用爐渣改良劑組成物可純化鋼(鐵)水，減少殘留於鋼(鐵)水中之氧化物浮渣，防止鐵原子間因附著爐渣使原子間距遠離，使鋼水或鐵水在相同溫度與材質下增加其流動性與純度，進而有效提高後續鑄件之良品率；並於之後鑄造過程中，若添加之廢鋼雜質較多，亦能藉由本發明之爐渣改良劑組成物將鋼水淨化，提升鋼(鐵)水純度，進一步提高鑄件良率與物理性質，同時加快廢鋼之溶解速度及縮短熔煉時間。Another secondary object of the present invention is that the slag modifier composition for casting can purify steel (iron) water, reduce oxide scum remaining in steel (iron) water, and prevent atomic distance between iron atoms due to adhesion of slag. The molten steel or molten iron is increased in fluidity and purity under the same temperature and material, thereby effectively improving the yield of the subsequent casting; and in the subsequent casting process, if the added scrap has more impurities, the slag of the present invention can also be used. The modifier composition purifies the molten steel, improves the purity of the steel (iron) water, further improves the yield and physical properties of the casting, and accelerates the dissolution rate of the scrap and shortens the melting time.
本發明之再一次要目的在於該鑄造用爐渣改良劑組成物可清除黏附於感應式熔解爐爐襯之爐渣，避免在熔煉過程中，爐渣會不斷與爐襯壁之耐火材料發生反應，使耐火材料剝落造成爐襯壽命降低，藉此提高爐襯壽命。The object of the present invention is that the slag modifier composition for casting can remove the slag adhered to the lining of the induction melting furnace, so as to avoid the slag continuously reacting with the refractory material of the lining wall during the smelting process, so that the refractory material is peeled off. This results in a reduced lining life, thereby increasing the life of the lining.
為便於說明本發明於上述發明內容一欄中所表示的中心思想，茲以具體實施例表達。實施例中各種不同物件係按適於說明之比例、尺寸、變形量或位移量而描繪，而非按實際元件的比例予以繪製，合先敘明。且以下的說明中，類似的元件是以相同的編號來表示。For the convenience of the description, the central idea expressed by the present invention in the column of the above summary of the invention is expressed by the specific embodiments. Various items in the embodiments are depicted in terms of ratios, dimensions, amounts of deformation, or displacements that are suitable for illustration, and are not drawn to the proportions of actual elements, as set forth above. In the following description, like elements are denoted by the same reference numerals.
請參閱第三圖，本發明提供一種鑄造用爐渣改良劑組成物，其包括：由氧化鈣CaO、氧化鈉Na2 O、氧化鋁Al2 O3 以及二氧化矽SiO2 所組成之一組成物。Referring to the third figure, the present invention provides a casting slag modifier composition comprising: a composition consisting of calcium oxide CaO, sodium oxide Na 2 O, alumina Al 2 O 3 and cerium oxide SiO 2 .
其中，組成物成分含量為氧化鈣CaO含量為至少30重量%，並小於67重量%；氧化鈉Na2 O含量為至少25重量%，並小於62重量%；氧化鋁Al2 O3 含量為至少8重量%，並小於45重量%；二氧化矽SiO2 含量為大於0重量%，並不超過10重量%；於本實施態樣中該組成物更包括有氧化鐵Fe2 O3 ，且氧化鐵Fe2 O3 含量為不超過5重量%。Wherein the composition component content is at least 30% by weight of calcium oxide and less than 67% by weight; the content of sodium oxide Na 2 O is at least 25% by weight and less than 62% by weight; and the content of alumina Al 2 O 3 is at least 8 wt%, and less than 45% by weight; the cerium oxide SiO 2 content is more than 0% by weight, not more than 10% by weight; in this embodiment, the composition further includes iron oxide Fe 2 O 3 and is oxidized. The iron Fe 2 O 3 content is not more than 5% by weight.
以及，一種鑄造用爐渣改良劑組成物使用方法，其特徵為使用上述之鑄造用爐渣改良劑組成物進行鑄造者。Further, a method for using a composition for casting a slag modifier, which is characterized in that the casting slag modifier composition is used for casting.
明暸上述結構後，以下係針對本發明之動作及原理作一詳細說明：Having fully understood the above structure, the following is a detailed description of the actions and principles of the present invention:
如第四圖並配合第三圖所示，將鑄造用的廢鐵100原料與該鑄造用爐渣改良劑組成物先後添加至感應式熔解爐10中，其添加量為鋼水20的0.03-0.08重量%，之後並須視感應式熔解爐10爐壁情況來斟的調整用量。鑄造過程中該鑄造用爐渣改良劑組成物可與鑄造過程產生之爐渣30結合，使爐渣30之鹽基度上升，造成爐渣30內上述成分之鍵結力道減弱，使爐渣30成分內的架橋鏈斷鍵，架橋鏈斷鍵之後的爐渣30結構會變的鬆弛，達到軟化爐渣30的目的，使後續加入的廢鐵100可順利沉入至感應式熔解爐10內。利用改良劑內含鋁成分降低爐渣30內氧化鐵與氧化錳含量，並增加爐渣30之活性，其反應方程式如下：As shown in the fourth figure and in conjunction with the third figure, the scrap iron 100 raw material for casting and the foundry slag modifier composition are sequentially added to the induction melting furnace 10, and the addition amount is 0.03-0.08 of the molten steel 20. % by weight, after which it is necessary to adjust the amount according to the condition of the furnace wall of the induction melting furnace. The casting slag modifier composition in the casting process can be combined with the slag 30 produced in the casting process to increase the salt base of the slag 30, thereby causing the bonding force of the above components in the slag 30 to weaken, and the bridging chain in the slag 30 component. When the key is broken, the structure of the slag 30 after the breaking of the bridging chain is loosened to achieve the purpose of softening the slag 30, so that the subsequently added scrap iron 100 can be smoothly sunk into the inductive melting furnace 10. The content of iron oxide and manganese oxide in the slag 30 is reduced by the aluminum content of the modifier, and the activity of the slag 30 is increased. The reaction equation is as follows:
3MnO+3FeO+4Al→3Mn+3Fe+2Al2 O3 3MnO+3FeO+4Al→3Mn+3Fe+2Al 2 O 3
Al2 O3 +CaO→Al2 O3 ‧CaOAl 2 O 3 +CaO→Al 2 O 3 ‧CaO
CaO+SiO2 →CaSiO3 CaO+SiO 2 →CaSiO 3
Fe2 O3 +Fe→3FeOFe 2 O 3 +Fe→3FeO
Fe2 O3 +3 C→4 Fe+3 CO2 Fe 2 O 3 +3 C→4 Fe+3 CO 2
FeO+CO→Fe(鐵水)+CO2 FeO+CO→Fe(hot metal)+CO 2
Mn+FeO→MnO+Fe(鐵水)Mn+FeO→MnO+Fe(hot metal)
爐渣30活性提高使爐渣30內上述成分之分子間鍵結力道減弱，藉此使爐渣30軟化，防止不易溶解之氧化物黏附於感應式熔解爐10之爐壁，達到能源使用效率提升，進而縮短熔煉時間；再者，該鑄造用爐渣改良劑組成物於熔煉過程中能純化鋼水20，減少殘留於鋼水20中之氧化物浮渣，進而有效提高鑄件良品率；此外，為避免熔煉過程中爐渣30不斷與爐襯40之耐火材料反應而降低爐襯40壽命，該鑄造用爐渣改良劑組成物可清除吸附在爐襯40上的爐渣30，進而提高感應式熔解爐10之爐襯40壽命。The activity of the slag 30 is increased to weaken the intermolecular bonding strength of the above components in the slag 30, thereby softening the slag 30, preventing the insoluble oxide from adhering to the furnace wall of the induction melting furnace 10, thereby improving energy use efficiency and shortening. The smelting time; further, the slag modifier composition for casting can purify the molten steel 20 during the smelting process, thereby reducing the oxide scum remaining in the molten steel 20, thereby effectively improving the yield of the casting; in addition, in order to avoid the smelting process The middle slag 30 continuously reacts with the refractory material of the lining 40 to reduce the life of the lining 40. The slag modifier composition for casting can remove the slag 30 adsorbed on the lining 40, thereby improving the life of the lining 40 of the induction melting furnace 10.
該鑄造用爐渣改良劑組成物可純化鋼水20，減少殘留於鋼水20中之氧化物浮渣，防止鐵原子間因附著爐渣30使原子間距遠離，使鐵原子間之鍵結不會受到爐渣30存在影響而減弱，如此鋼水20在相同溫度與材質下將會提高流動性與純度，使後續成品具良好塑性與延展性。The casting slag modifier composition can purify the molten steel 20, reduce the oxide dross remaining in the molten steel 20, and prevent the iron atoms from being separated from each other by the adhesion of the slag 30, so that the bond between the iron atoms is not affected. The slag 30 has an influence and is weakened, so that the molten steel 20 will improve the fluidity and purity under the same temperature and material, so that the subsequent finished product has good plasticity and ductility.
總結本發明之作用與優點如下：Summarize the functions and advantages of the present invention as follows:
1、爐渣改良劑組成物可軟化爐渣30，造成爐渣30內上述成分之鍵結力道減弱，使爐渣30成分內的架橋鏈斷鍵，進而爐渣30結構會變的鬆弛，達到軟化爐渣的目的，有效防止架橋現象產生。1. The slag modifier composition can soften the slag 30, causing the bonding force of the above components in the slag 30 to be weakened, so that the bridging chain in the slag 30 component is broken, and the structure of the slag 30 is loosened to achieve the purpose of softening the slag. Effectively prevent bridging.
2、軟化爐渣30後防止不易熔解之氧化物黏附爐壁與爐襯40，避免爐襯40被爐渣30附著造成爐襯40上之耐火材料壽命降低。2. After the slag 30 is softened, the oxide which is not easily melted is prevented from adhering to the furnace wall and the lining 40, so as to prevent the lining 40 from being adhered by the slag 30, thereby reducing the life of the refractory material on the lining 40.
3、該鑄造用爐渣改良劑組成物可淨化鋼水20，吸附殘留於鋼水20中之氧化物浮渣，吸附內層鐵原子間殘留的爐渣30，防止鐵原子間因附著爐渣30使原子間距拉離，使鐵原子間鍵結能力不受爐渣30影響減弱，提供後續鑄件具備良好塑性與強度、韌性好、易加工、抗沖擊之特性。3. The slag modifier composition for casting can purify the molten steel 20, adsorb the oxide scum remaining in the molten steel 20, and adsorb the slag 30 remaining between the inner iron atoms to prevent the iron atoms from adhering to the slag 30 to atomize The spacing is pulled away, so that the bonding ability between iron atoms is not weakened by the influence of the slag 30, and the subsequent castings have the characteristics of good plasticity and strength, good toughness, easy processing and impact resistance.
雖本發明是以一個最佳實施例作說明，但精於此技藝者能在不脫離本發明精神與範疇下作各種不同形式的改變。以上所舉實施例僅用以說明本發明而已，非用以限制本發明之範圍。舉凡不違本發明精神所從事的種種修改或變化，俱屬本發明申請專利範圍。While the invention has been described in terms of a preferred embodiment, the various modifications of the various embodiments can be made without departing from the spirit and scope of the invention. The above embodiments are merely illustrative of the invention and are not intended to limit the scope of the invention. All modifications and variations that are made without departing from the spirit of the invention are the scope of the invention.
1‧‧‧廢鐵 1‧‧‧ scrap iron
2‧‧‧感應式熔解爐 2‧‧‧Induction melting furnace
3‧‧‧鋼(鐵)水 3‧‧‧Steel (iron) water
4‧‧‧爐渣 4‧‧‧ slag
5‧‧‧爐襯 5‧‧‧ furnace lining
10‧‧‧感應式熔解爐 10‧‧‧Induction melting furnace
20‧‧‧鋼水 20‧‧‧Steel
30‧‧‧爐渣 30‧‧‧ slag
40‧‧‧爐襯 40‧‧‧ furnace lining
100‧‧‧廢鐵 100‧‧‧ scrap iron
第一圖係習用鑄造流程示意圖。 The first picture is a schematic diagram of the conventional casting process.
第二圖係習用鑄造製程中感應式熔解爐發生架橋現象示意圖。 The second picture is a schematic diagram of the bridging phenomenon of the induction melting furnace in the conventional casting process.
第三圖係本發明之鑄造用爐渣改良劑組成物使用於鑄造流程示意圖。 The third figure is a schematic diagram of the casting slag modifier composition of the present invention used in the casting process.
第四圖係本發明之鑄造用爐渣改良劑組成物軟化爐渣示意圖。 The fourth drawing is a schematic view of the softening slag of the casting slag modifier composition of the present invention.
Claims (9)
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| TWI417391B true TWI417391B (en) | 2013-12-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN1836052A (en) * | 2004-01-22 | 2006-09-20 | 株式会社神户制钢所 | Method for producing high cleanness steel excellent in fatigue strength or cold workability |
| CN101307375A (en) * | 2008-07-11 | 2008-11-19 | 重庆大学 | A kind of anti-sticking ladle slag modifier for refining outside the furnace |
| CN101613786A (en) * | 2009-07-21 | 2009-12-30 | 大石桥市荣源镁矿有限公司 | Boron-containing modifier for ladle covering slag and its application method |
| CN101629225A (en) * | 2009-08-11 | 2010-01-20 | 韶关市华喆冶金材料有限公司 | Slag synergist |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1836052A (en) * | 2004-01-22 | 2006-09-20 | 株式会社神户制钢所 | Method for producing high cleanness steel excellent in fatigue strength or cold workability |
| CN101307375A (en) * | 2008-07-11 | 2008-11-19 | 重庆大学 | A kind of anti-sticking ladle slag modifier for refining outside the furnace |
| CN101613786A (en) * | 2009-07-21 | 2009-12-30 | 大石桥市荣源镁矿有限公司 | Boron-containing modifier for ladle covering slag and its application method |
| CN101629225A (en) * | 2009-08-11 | 2010-01-20 | 韶关市华喆冶金材料有限公司 | Slag synergist |
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