201213549 六、發明說明： 【發明所屬之技術領域】 本發明係提供一種使用於鋼鐵鑄造過程中之.组成物及使用方法，更 詳而言之’有關一種可改變爐渣特性，達到提升炫煉效率之一種禱造 用爐渣改良劑組成物及其使用方法》 【先前技術】 傳統電爐鑄造廠溶鍊時是以廢鐵1或生鐵加上所需要目標成份之 添加劑如（C、Si、Μη、P、S…等元素），於感應式熔解爐2内直接 溶煉成鋼(鐵)液後，再澆鑄到模穴得到所需要的矯件。 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 内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内雜質進行清除。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’使後續加人的廢鐵丨無法棚沉入至感 應式炫解爐2内，形舰辦礙，拖長駐俩間。且初步除漁完成 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、 V數轉ie業者會於;^煉程序巾加人造;查劑，習知之造渣劑係以採用螢 石（氟化鈣）或石灰石(碳酸約)為主要之造渣劑，但使用效果不佳因 201213549 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 月b達到鋒造所需之溫度要求，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 ’查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。 0 【發明内容】 造渣就是在鑄造過程中加入稱爲造渣劑的物質，如氟化鈣或碳酸約 等，目的是將將鋼水中雜質分離出來，以便後績除渣程序。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，藉以改變爐渣之特鲁 性並同時淨化鋼水或鐵水。 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Ν々0、氧化鋁a丨2〇3以及二氧化矽Si〇2所組 成之一組成物’且該組成物亦可包括氧化鐵Fe2〇3。 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鎊造者。 4 201213549 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，造成爐渣内上述成分之鍵結力 道減弱’使爐渣成分内的架橋鏈斷鍵，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。 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潰之 活性’並利用改良劑内含鋁成分降低爐渣内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： 3MnO+3FeO+4Al -*>3Mn+3Fe+2Al2〇3 Al203+CaO->Al2〇3 · CaO CaO+Si〇2—>CaSi〇3201213549 VI. Description of the invention: [Technical field to which the invention pertains] The present invention provides a composition and a method of use for use in a steel casting process, and more specifically, a related slag characteristic can be modified to improve the smelting efficiency A slag improver composition for use in prayer and a method of using the same] [Prior Art] A conventional electric furnace foundry is a solution of scrap iron 1 or pig iron plus an additive of a desired target component such as (C, Si, Μ, P) (S, etc.), directly smelted into steel (iron) solution in the induction melting furnace 2, and then cast into the cavity to obtain the required orthopedic parts. 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 during the process, and can be removed first by means of a slag removing agent, and the rest is dispersed 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 of lower temperature, it will easily harden the agglomerate and form a bridging phenomenon as shown in the second figure. The scrap iron shovel could not be shacked into the inductive concentrating furnace 2, and the shape of the ship was hindered. And after the initial completion of the fishing, 'steel (iron) water 3 must be heated again and then slag removal action, also waste energy, V number will be transferred to the industry; The slag agent is mainly composed of fluorite (calcium fluoride) or limestone (carbonic acid), but the use effect is not good. Because 201213549 will produce fluoride, it will cause great harm to the environment; and the slag effect of limestone is not Good and need to reach a certain temperature to have benefits. 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 meet the temperature requirements required for the formation, and also causes Waste of energy and cost. 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 residue of the furnace 4 will weaken the bonding ability between the iron atoms, resulting in the steel material. The ductility and strength are deteriorated, which reduces the yield of subsequent castings. 5. The refractory material of the slag 4 and the lining 5 reacts to reduce the life of the lining 5. 0 [Summary of the Invention] The slagging is to add a substance called slag-forming agent, such as calcium fluoride or carbonic acid, in the casting process. The purpose is to separate the impurities in the molten steel for the post-slag slag removal procedure. 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 lining produces a reaction which 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 slag of the slag and simultaneously purifying molten steel or molten iron. The present invention provides a slag improver composition for casting, comprising: a composition consisting of calcium oxide CaO, sodium oxide Ν々0, alumina a丨2〇3, and cerium oxide Si〇2 and The composition may also include iron oxide Fe2〇3. Further, a method for using a composition for casting a slag modifier is characterized in that the above-described composition for casting slag modifier is used for the manufacture of steel pounds. 4 201213549 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 reacted with 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. The secondary object of the present invention is that the slag modifier composition for casting can increase the activity of the furnace collapse 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. The reaction equation is as follows: 3MnO+3FeO+4Al -*>3Mn+3Fe+2Al2〇3 Al203+CaO->Al2〇3 · CaO CaO+Si〇2—>CaSi〇3
Fe2〇3+Fe—>3FeOFe2〇3+Fe—>3FeO
Fe203 + 3 C 4 Fe + 3 C02 FeO+CO->Fe (鐵水）+C02 Mn+FeO—MnO+Fe (鐵水） 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；並於之後矯造過程 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 201213549 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。 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 爐概壽命。 【實施方式】 為便於說明本發明於上述發明内容一攔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。 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Na20、氧化鋁Α12〇3以及二氧化矽Si〇2所 組成之一組成物。 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Na2〇含量為至少25重量％，並小於62重量％ ; 氧化銘Al2〇3含量為至少8重量％，並小於45重量％ ;二氧化梦Si02 含量為大於0重量％，並不超過〗〇重量❶/β ;於本實施態樣中該組成物 更包括有氧化鐵Fe2〇3 ’且氧化鐵Fe2〇3含量為不超過5重量％。 以及’一種鑄造用爐渣改良劑組成物使用方法9其特徵為使用上述 之缚造用爐渣改良劑組成物進行缚造者。 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： 201213549 - 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 M% ’之後並須視感應式溶解爐1〇爐壁情況來斜酌調 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3〇内上述成分之鍵 結力道減弱，使爐渣30成分内的架橋鏈斷鍵，架橋鏈斷鍵之後的爐渣 30結構會變的鬆弛’ it到軟化爐g 30的目的，使後續加入的廢鐵1〇〇 • 可順利沉入至感應式溶解爐丨〇内。利用改良劑内含銘成分降低爐渔30 内氧化鐵與氧化猛含量，並增加爐渣3〇之活性，其反應方程式如下： 3MnO+3FeO+4Al -^3Mn+3Fe+2Al203 Al203+CaO-^Al2〇3 · CaO CaO+Si02-»CaSi〇3Fe203 + 3 C 4 Fe + 3 C02 FeO+CO->Fe (hot metal)+C02 Mn+FeO-MnO+Fe (iron water) Another secondary object of the present invention is that the slag modifier composition for casting can be Purified steel (iron) water' reduces the oxide scum remaining in steel (iron) water, preventing the atomic distance between the iron atoms due to the adhesion of slag, so that the molten steel or molten iron increases its fluidity under the same temperature and material. The purity 'further increases the yield of the subsequent castings; and in the subsequent manufacturing process, if the added scrap has more impurities, the 201213549 molten steel can be purified and the steel (iron) water can be purified by the slag modifier composition of the present invention. Purity, further improve the casting yield and physical properties, while speeding up the dissolution rate of scrap steel and shortening the melting time. 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 reduction in the life of the lining, thereby reducing the life of the furnace. [Embodiment] For the convenience of the description, the central idea expressed by the present invention in the above description of the invention is expressed by a specific embodiment. The various items in the embodiments are depicted in terms of proportions, dimensions, amounts of deformation, or displacements that are suitable for the description, and are not drawn to the proportions of the actual elements. In the following description, like elements are denoted by the same reference numerals. Referring to the third drawing, the present invention provides a casting slag modifier composition comprising: a composition comprising calcium oxide CaO, sodium oxide Na20, alumina ruthenium 12〇3, and cerium oxide Si〇2. 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 〇 is at least 25% by weight and less than 62% by weight; the content of oxidized Al 2 〇 3 is at least 8% by weight and less than 45% by weight; the content of SiO 2 is more than 0% by weight, not exceeding 〇 〇 weight ❶ / β; in this embodiment, the composition further includes iron oxide Fe 2 〇 3 ' and the iron oxide Fe 2 〇 3 content is not more than 5% by weight. And a method 9 for using a slag improver for casting, which is characterized in that it is used by the above-described slag modifier composition for binding. After the above structure is clarified, the following is a detailed description of the operation and principle of the present invention: 201213549 - As shown in the fourth figure and in conjunction with the third figure, the scrap iron 100 raw material for casting and the slag improver composition for casting It is added to the induction melting furnace 10 successively, and the addition amount is 0.03-0.08 M%' of the molten steel 20, and the amount of the induction melting furnace is adjusted according to the condition of the furnace wall. During the casting process, the slag modifier composition for casting can be combined with the slag 30 produced during the casting process to increase the salt base of the slag 30, thereby weakening the bonding force of the above components in the slag 3, and bridging the composition of the slag 30. The chain break key, the structure of the slag 30 after the bridging chain breaks the key will become slack 'it to the purpose of softening the furnace g 30, so that the subsequent added scrap iron 1 〇〇 can be smoothly sinked into the induction melting furnace. The use of the modifier contained in the modifier reduces the iron oxide and oxidized content in the furnace 30 and increases the activity of the slag. The reaction equation is as follows: 3MnO+3FeO+4Al -^3Mn+3Fe+2Al203 Al203+CaO-^Al2 〇3 · CaO CaO+Si02-»CaSi〇3
Fe2〇3+Fe-^3FeOFe2〇3+Fe-^3FeO
Fe2〇3 + 3C—MFe + 3 C〇2 FeO+CO—>Fe (鐵水）+c〇2 Mn+feO-^MnO+Fe (鐵水） 爐產3〇活性提高使爐渣3〇内上述成分之分子間鍵結力道減弱藉 此使爐逢30軟化，防止不易溶解之氧化物點附於感應式溶解爐1〇之 爐壁，達到能源使耻率提升，進而縮短溶煉時間；再者，該铸造用 爐左改良劑組成物於炫煉過程中能純化鋼水2〇，減少殘留於鋼水2〇中 之氧化物浮潰，進而有效提高翁良品率；此外，為避免溶煉過程中 201213549 爐渣30不斷與爐襯4〇之耐火材料反應而降低爐襯4〇壽命，該鑄造用 爐渣改良劑組成物可清除吸附在爐襯4〇上的爐渣3〇，進而提高感應式 熔解爐10之爐襯4〇壽命。 該鑄造用爐渣改良劑組成物可純化鋼水2〇，減少殘留於鋼水2〇中 之氧化物浮渣，防止鐵原子間因附著爐渣3〇使原子間距遠離，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2〇在相同溫 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。 總結本發明之作用與優點如下： | 1、 爐渣改良劑組成物可軟化爐渣3〇，造成爐渣30内上述成分之 鍵結力道減弱，使爐渣30成分内的架橋鏈斷鍵，進而爐渣3〇結構會 變的鬆弛，達到軟化爐渣的目的，有效防止架橋現象產生。 2、 軟化爐渣30後防止不易熔解之氧化物黏附爐壁與爐襯4〇，避 免爐概40被爐渣30附著造成爐襯4〇上之耐火材料壽命降低。 3、 該鑄造用爐渣改良劑組成物可淨化鋼水2〇，吸附殘留於鋼水2〇 中之氧化物浮渣，吸附内層鐵原子間殘留的爐渣3〇，防止鐵原子間因鲁 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3〇影響 減弱，提供後續鎮件具備良好塑性與強度'勒性好、易加工、抗沖擊 之特性。 雖本發明是以-個最佳實施例作說明，但精於此技藝者能在不脫離 本發明精神與範訂作各種抑形式的改m所舉實施例僅用以 說明本發_已，非用罐制本發明之範圍。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。 201213549 【圖式簡單說明】 第一圖係習用鑄造流程示意圖。 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。 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。 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。 【主要元件符號說明】 1廢鐵 10感應式熔解爐Fe2〇3 + 3C—MFe + 3 C〇2 FeO+CO—>Fe (hot metal)+c〇2 Mn+feO-^MnO+Fe (hot metal) The activity of the furnace is increased by 3〇 to make the slag within 3〇 The intermolecular bonding strength of the above components is weakened to soften the furnace 30, preventing the insoluble oxide dots from being attached to the furnace wall of the induction melting furnace, thereby increasing the shame rate of the energy source and shortening the melting time; The casting left furnace modifier composition can purify the molten steel 2 during the smelting process, and reduce the oxide floating in the molten steel 2〇, thereby effectively improving the Wengliang product rate; in addition, in order to avoid melting In the process, the 201213549 slag 30 continuously reacts with the refractory material of the lining to reduce the life of the lining, and the slag modifier composition for casting can remove the slag adsorbed on the lining 4 〇, thereby improving the inductive melting furnace 10 Furnace lining 4 〇 life. The slag modifier composition for casting can purify molten steel 2 〇, reduce the oxide scum remaining in the molten steel 2 ,, and prevent the iron atoms from being attached to the slag 3 〇 to make the atomic distance away, so as to bond between the iron atoms. It will not be weakened by the influence of the slag 30. Therefore, the molten steel 2〇 will improve the fluidity and purity under the same temperature and material, so that the subsequent products have good plasticity and ductility. The functions and advantages of the present invention are summarized as follows: 1. The slag modifier composition can soften the slag 3 〇, causing the bonding force of the above components in the slag 30 to weaken, so that the bridging chain in the slag 30 component is broken, and then the slag is 3 〇. The structure will become slack, and the purpose of softening the slag can be achieved, and the bridging phenomenon can be effectively prevented. 2. After softening the slag 30, the oxide which is not easily melted is prevented from adhering to the furnace wall and the lining, so as to avoid the refractory life of the lining 4 being lowered due to the adhesion of the slag 30. 3. The slag modifier composition for casting can purify the molten steel 2 〇, adsorb the oxide scum remaining in the molten steel 2 ,, and adsorb the residual slag between the inner iron atoms to prevent the iron slag from adhering to the slag. 30. The distance between the atoms is pulled away, so that the bonding ability between the iron atoms is not weakened by the influence of the slag, and the subsequent town parts have good plasticity and strength, good character, easy processing and impact resistance. The present invention has been described in terms of a preferred embodiment, and those skilled in the art can devise various embodiments without departing from the spirit and scope of the invention. Non-use cans are within the scope of the invention. All modifications and variations made without departing from the spirit of the invention are within the scope of the invention. 201213549 [Simple description of the diagram] The first diagram is a schematic diagram of the conventional casting process. The second picture is a schematic diagram of the bridging phenomenon of the induction melting furnace in the conventional casting process. The third figure is a schematic diagram of the casting slag modifier composition of the present invention used in the casting process. The fourth drawing is a schematic view of the softening slag of the casting slag modifier composition of the present invention. [Main component symbol description] 1 scrap iron 10 induction melting furnace
2感應式溶解爐 20鋼水 3鋼（鐵）水 30爐渣 4爐渣 40爐襯 5爐襯 100廢鐵2 Induction melting furnace 20 steel water 3 steel (iron) water 30 furnace slag 4 slag 40 furnace lining 5 furnace lining 100 scrap iron