TWI496647B - High - carbon base metal with hard surface repair welding consumables and high - carbon base metal used in hard surface repair method - Google Patents
High - carbon base metal with hard surface repair welding consumables and high - carbon base metal used in hard surface repair method Download PDFInfo
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Description
本發明係有關於一種銲材,尤指一種應用於硬面銲接修補且不會產生銲接熱裂之銲材。The invention relates to a welding consumable, in particular to a welding consumable which is applied to hard surface welding repair without causing welding hot cracking.
金屬材料的相關研究與發展日益進步,金屬材料通常是指工業上各種構造物製造時所使用之金屬(metal)或合金(alloy)。合金常指兩種以上的金屬或金屬與非金屬結合而成,且具有金屬特性之材料。一般金屬材料均具有下列共同的特性:(1)電與熱之良導體;(2)塑性加工變形能力佳,富延性及展性,因此廣泛的應用在模具加工、機械製造、鑄造工業以及各類工業中,因為目前金屬材料的表面潔淨度提高,其金屬材料之間的銲接方式與材料成為一重要課題。Related research and development of metallic materials is increasingly advanced, and metal materials generally refer to metals or alloys used in the manufacture of various structures in the industry. Alloys often refer to materials in which two or more metals or metals are combined with non-metals and have metallic properties. Generally, metal materials have the following common characteristics: (1) good conductors of electricity and heat; (2) plastic processing deformation ability, ductility and malleability, so they are widely used in mold processing, machinery manufacturing, foundry industry, and In the industrial industry, because the surface cleanliness of metal materials is currently improved, the welding method and materials between the metal materials become an important issue.
目前於鋼鐵廠常見使用的輥輪(Roll),其碳的含量越高,硬度也越高,但含碳量越高(通常是指超過0.45%),所能使用的銲接材料越少,且作為硬面補銲銲道通常會發生熱裂現象,當長期使用可能會發生輥輪斷裂,十分危險且必須停工造成經濟上的損失。Rollers commonly used in steel mills, the higher the carbon content, the higher the hardness, but the higher the carbon content (usually more than 0.45%), the less welding material that can be used, and As a hard-faced weld bead, hot cracking usually occurs. When it is used for a long time, the roller may break, which is very dangerous and must be shut down to cause economic loss.
現有技術之輥輪中諸如S60C、S70C、S80C、S85C、S90C以及SUJ2等之高碳母材,其等含碳量皆超過0.6至1.2%,已知其等一旦出現熱裂問題或不堪使用時,無法經由二次銲補回修而直接報廢處理,對於使用者而言經濟成本高且相當不環保,由此可見目前仍缺乏一種可用於高碳含量的母材且不易發生熱裂問題的緩衝層銲材。High-carbon base materials such as S60C, S70C, S80C, S85C, S90C, and SUJ2 in the prior art rolls have a carbon content of more than 0.6 to 1.2%, and are known to have problems such as thermal cracking or unbearable use. It can not be directly scrapped through secondary repair and repair, which is economical and economically unfriendly for users. It can be seen that there is still a lack of a buffer that can be used for high carbon content base materials and is not prone to hot cracking problems. Layer welding consumables.
本發明人有鑑於現有技術的高碳母材沒有相對應的修補方式,一旦產生裂紋等問題即作報廢處理,相當不環保且成本較高而發明一種硬面修補銲材,該銲材以可應用於高碳母材的銲接修補為本發明目的。The present inventors have in view of the fact that the high-carbon base material of the prior art does not have a corresponding repairing method, and is treated as a scrapping treatment once a crack or the like is generated, which is relatively environmentally friendly and costly, and invents a hard surface repairing welding material, which can be The welding repair applied to the high carbon base material is the object of the present invention.
為達到前述目的,本發明所採取之技術手段係提供一種硬面修補銲材,其係主要由碳、鉬以及鐵元素所組成,其中碳元素重量百分比為0.02至0.10%之間;以及鉬元素重量百分比為1.4至3%之間。In order to achieve the foregoing object, the technical means adopted by the present invention provides a hard surface repair welding material which is mainly composed of carbon, molybdenum and iron elements, wherein the carbon element weight percentage is between 0.02 and 0.10%; and molybdenum element The weight percentage is between 1.4 and 3%.
較佳的,一種硬面修補銲材,其係為包含下列元素之合金:碳元素重量百分比為0.02至0.10%之間;以及錳元素重量百分比為1.0至3.0%之間;以及矽元素重量百分比為0.3至1.0%之間;以及鉻元素重量百分比為0.6至3.5%之間;以及鉬元素重量百分比為1.4至3%之間;以及硫元素重量百分比為0.03%以下;以及磷元素重量百分比為0.03%以下;以及其餘成分為鐵元素。Preferably, a hard surface repairing consumable is an alloy comprising the following elements: a carbon element weight percentage of between 0.02 and 0.10%; and a manganese element weight percentage of between 1.0 and 3.0%; and a niobium element weight percentage Between 0.3 and 1.0%; and the chromium element weight percentage is between 0.6 and 3.5%; and the molybdenum element weight percentage is between 1.4 and 3%; and the sulfur element weight percentage is 0.03% or less; and the phosphorus element weight percentage is Below 0.03%; and the rest of the ingredients are iron.
較佳的,其中碳元素重量百分比為0.03%;錳元素含量百分比為2.1%;矽元素含量百分比為0.6%;鉻元素含量百分比為0.7%;鉬元素含量百分比為3%;硫元素含量百分比為0.03%以下;以及磷元素含量百分比為0.03%以下。Preferably, the carbon element weight percentage is 0.03%; the manganese element content percentage is 2.1%; the cerium element content percentage is 0.6%; the chromium element content percentage is 0.7%; the molybdenum element content percentage is 3%; the sulfur element content percentage is 0.03% or less; and the percentage of the phosphorus element content is 0.03% or less.
所述之硬面修補銲材,其可應用於高碳母材的銲接修補。The hard surface repair welding material can be applied to the welding repair of the high carbon base material.
所述之硬面修補銲材,其具有良好的抗銲接熱裂敏感度。The hard surface repair welding material has good resistance to solder thermal cracking.
所述之硬面修補銲材,其具有良好的耐孔蝕性。The hard surface repairing welding material has good pitting resistance.
所述之硬面修補銲材,其溫度加熱至約550℃時,具有維式硬度介於310Hv至370Hv之間。The hard surface repairing welding material has a Vickers hardness of between 310 Hv and 370 Hv when the temperature is heated to about 550 °C.
藉由本發明之硬面修補銲材,可達到下列之優點與功效:By the hard surface repair welding material of the invention, the following advantages and effects can be achieved:
1.本發明之硬面修補銲材,可忍受高碳母材的稀釋,使得高碳母材得以於適當時機進行硬面銲接修補,而不致以報廢處理,可大幅降低成本以避免浪費。1. The hard surface repair welding material of the invention can withstand the dilution of the high carbon base material, so that the high carbon base material can be hard surface welded and repaired at an appropriate timing without being scrapped, which can greatly reduce the cost to avoid waste.
2.本發明之硬面修補銲材,具有良好的熔金硬度、耐孔蝕性、抗回火軟化能力、耐衝擊性以及對高碳母材的抗銲接熱裂敏感度。2. The hard surface repair welding material of the invention has good molten gold hardness, pitting corrosion resistance, temper softening resistance, impact resistance and resistance to solder thermal cracking of high carbon base materials.
本發明係有關於一種硬面修補銲材,其具體實施例如下,但應明瞭的是,該等實施例僅為說明之用,而不應被視為本發明的實施上的限制。The present invention is directed to a hardfacing repairing material, and the specific embodiments thereof are as follows, but it should be understood that the examples are for illustrative purposes only and are not to be considered as limiting of the invention.
本發明之硬面修補銲材,以下簡稱RolClad,其成份包含碳、錳、矽、鉻、鉬、硫以及磷,其各元素之重量百分比如表1所示:The hard surface repairing welding material of the present invention, hereinafter referred to as RolClad, comprises carbon, manganese, cerium, chromium, molybdenum, sulfur and phosphorus, and the weight percentage of each element is as shown in Table 1:
本發明並採用了市售的硬面修補銲材作為對照組1以及對照組2,對照組1其成份包含碳、錳、矽、鉻、鉬、硫以及磷,對照組2其成份包含碳、錳、矽、鉬、硫以及磷,兩對照組之各元素成分如表2所示:The invention also adopts a commercially available hard surface repair welding material as the control group 1 and the control group 2, the control group 1 contains carbon, manganese, strontium, chromium, molybdenum, sulfur and phosphorus, and the control group 2 contains carbon, Manganese, bismuth, molybdenum, sulfur and phosphorus, the composition of each element of the two control groups are shown in Table 2:
在本發明的下面的實施例中所指的銲接方法係如此技術領域具有通常知識者所知的潛弧銲接法方法,其銲接參數表示依次為電流/電壓/銲接高度/銲接速度,各銲接參數如下述實施例中所述。The welding method referred to in the following embodiments of the present invention is a submerged arc welding method known to those skilled in the art, and the welding parameters are represented by current/voltage/welding height/welding speed, and welding parameters. As described in the examples below.
實施例1Example 1
耐孔蝕性測試Pitting resistance test
將本發明之RolClad、對照組1與對照組2進行耐孔蝕當量計算,以下列公式計算耐孔蝕當量(pitting resistance equivalent)。The RupClad, Control 1 and Control 2 of the present invention were subjected to pitting resistance equivalent calculation, and the pitting resistance equivalent was calculated by the following formula.
PREN =Cr+3.3Mo+30NPRE N =Cr+3.3Mo+30N
結果顯示,本發明的RolClad之耐孔蝕當量介於12.09至61.21,而對照組1之耐孔蝕當量為11.02以及對照組2之耐孔蝕當量為3.9,由此結果可知,耐孔蝕性為RolClad優於對照組1與對照組2。The results showed that the pitting resistance equivalent of the RolClad of the present invention was between 12.09 and 61.21, while the pitting resistance equivalent of the control group 1 was 11.02 and the pitting resistance equivalent of the control group 2 was 3.9. From this result, it was found that the pitting resistance was observed. RolClad was superior to control group 1 and control group 2.
比較RolClad、對照組1與對照組2各元素成分重量百分比差異,可得知造成RolClad之耐孔蝕性優於對照組1與對照組2之原因為鉬元素的含量較多。Comparing the weight percentage differences of the elements of RolClad, control group 1 and control group 2, it can be seen that the peat corrosion resistance of RolClad is better than that of control group 1 and control group 2 because of the high content of molybdenum element.
耐孔蝕性測試的實驗條件如下:The experimental conditions for the pitting resistance test are as follows:
反應環境溫度;30℃;Reaction ambient temperature; 30 ° C;
反應環境濕度:80%;Reaction environment humidity: 80%;
銲接參數:400A/30V/ESO 30mm/40cpm;Welding parameters: 400A/30V/ESO 30mm/40cpm;
銲接預熱溫度:250℃~400℃;Welding preheating temperature: 250 ° C ~ 400 ° C;
使用銲材:RolClad與對照組2;以及Use welding consumables: RolClad and control 2;
使用母材:A45C。Use base metal: A45C.
將RolClad與對照組2銲接於母材表面進行觀察,實驗結果請參見圖1A與圖1B所示,取RolClad與對照組2於濕度80%與溫度30℃的環境下測試並觀察,圖1A為本發明之RolClad以及圖1B為對照組2,可發現對照組2明顯地產生多個生鏽點,反觀RolClad並無任何生鏽產生。RolClad and control group 2 were welded to the surface of the base material for observation. The experimental results are shown in Fig. 1A and Fig. 1B. RolClad and control group 2 were tested and observed under the conditions of humidity 80% and temperature 30 °C. Figure 1A shows The RolClad of the present invention and FIG. 1B are the control group 2, and it can be found that the control group 2 apparently produces a plurality of rust spots, and in contrast, the RolClad does not have any rust.
實施例2Example 2
抗回火軟化測試Anti-temper softening test
抗回火軟化測試的實驗條件如下:The experimental conditions for the anti-temper softening test are as follows:
測試反應溫度:0℃、200℃、300℃、400℃、500℃、550℃、600℃、700℃以及800℃;Test reaction temperature: 0 ° C, 200 ° C, 300 ° C, 400 ° C, 500 ° C, 550 ° C, 600 ° C, 700 ° C and 800 ° C;
反應時間:20天;Reaction time: 20 days;
使用銲材:RolClad;Use welding consumables: RolClad;
銲材之鉬含量重量百分比:0%、0.5%、1.5%、2.0%與3.0%;以及Molybdenum content of the consumables: 0%, 0.5%, 1.5%, 2.0% and 3.0%;
測量硬度儀器:維式硬度機。Measuring hardness instrument: Victoria hardness machine.
取本發明之RolClad進行抗回火軟化測試,改變RolClad的鉬的含量進行測試,實驗結果如圖2所示,RolClad之鉬含量分別為0%、0.5%、1.5%、2.0%以及3.0%,在回火溫度在500℃至550℃之間,可以觀察到當鉬的含量增加至1.5%時,其抗回火軟化的能力較為顯著,其維氏硬度可達約310Hv,而當RolClad之鉬含量越多時(2.0%與3.0%),其硬度提高,抗回火軟化的能力亦十分顯著,其維氏硬度最高可達約370Hv;而不含鉬的RolClad的抗回火軟化能力極差。The RolClad of the present invention is subjected to an anti-temper softening test, and the content of molybdenum of RolClad is changed for testing. The experimental results are shown in FIG. 2, and the molybdenum contents of RolClad are 0%, 0.5%, 1.5%, 2.0%, and 3.0%, respectively. When the tempering temperature is between 500 ° C and 550 ° C, it can be observed that when the content of molybdenum is increased to 1.5%, its ability to resist temper softening is more remarkable, and its Vickers hardness can reach about 310 Hv, and when the molybdenum of RolClad The higher the content (2.0% and 3.0%), the higher the hardness and the resistance to temper softening, the Vickers hardness can reach up to about 370Hv; and the non-molybdenum RolClad has very poor temper softening resistance. .
實施例3Example 3
對於高碳母材之抗銲接熱裂敏感度之測試當母材的碳含量重量百分比為0.3%以下,稱為低碳母材;當母材的碳含量重量百分比為0.3%至0.6%之間,稱為中碳母材;當母材的碳含量重量百分比為0.6%至2.0%之間,稱為高碳母材。For the test of the resistance to hot cracking of high carbon base materials, when the carbon content of the base material is 0.3% by weight or less, it is called low carbon base material; when the weight percentage of carbon content of the base material is between 0.3% and 0.6% It is called a medium carbon base material; when the carbon content of the base material is between 0.6% and 2.0% by weight, it is called a high carbon base material.
取一碳含量為0.6%的高碳母材,設計三種金屬元素成分百分比不同所製成的三種銲材進行銲接測試,其金屬成分比例如表3所示:Taking a high-carbon base material with a carbon content of 0.6%, three kinds of welding consumables made of different metal element percentages were designed for welding test. The metal composition ratio is shown in Table 3:
抗銲接熱裂敏感度的實驗條件如下:The experimental conditions for resistance to solder thermal cracking are as follows:
銲接參數:400A/30V/ESO30mm/40cpm;Welding parameters: 400A/30V/ESO30mm/40cpm;
銲接預熱溫度:350℃;Welding preheating temperature: 350 ° C;
使用銲材:如上面表3所列示的對照組3、對照組4與對照組5;Use welding consumables: control group 3, control group 4 and control group 5 as listed in Table 3 above;
使用母材:S60C(碳含量為0.6%的高碳母材)。The base metal was used: S60C (high carbon base material with a carbon content of 0.6%).
取對照組3於碳含量為0.6%的高碳母材進行銲接,其結果如圖3A以及圖3B所示,將銲道放大觀察,可發現銲道上產生具有一致方向性的熱裂紋;取對照組4於碳含量為0.6%的高碳母材進行銲接,其結果如圖4A以及圖4B所示,將銲道放大觀察,可發現銲道上產生熱裂紋,其熱裂紋與圖3B相比,較不具一致的方向性;取對照組5於碳含量為0.6%的高碳母材進行銲接,其結果如圖5A以及圖5B所示,將銲道放大觀察,銲道上沒有熱裂紋產生。The control group 3 was welded to a high-carbon base material having a carbon content of 0.6%. The results are as shown in FIG. 3A and FIG. 3B. The weld bead is enlarged and observed, and hot cracks having uniform directivity are found on the weld bead; Group 4 was welded to a high carbon base material having a carbon content of 0.6%. As a result, as shown in FIG. 4A and FIG. 4B, the weld bead was enlarged and observed, and hot cracks were generated on the weld bead, and the thermal crack was compared with FIG. 3B. Less consistent directionality; the control group 5 was welded with a high carbon base material having a carbon content of 0.6%. As a result, as shown in FIG. 5A and FIG. 5B, the weld bead was enlarged and observed, and no hot crack occurred on the weld bead.
由前述結果可推知,銲材中鉬的含量越高,越不易於銲道上產生熱裂紋,無熱裂紋的產生有助於延長高碳母材的使用壽命,且表示該銲材對於高碳母材有較好的忍受度,使得高碳母材可進行修補而降低成本。It can be inferred from the above results that the higher the content of molybdenum in the welding consumable, the less prone to hot cracking on the weld bead, and the absence of hot cracking helps to prolong the service life of the high carbon base metal, and indicates that the consumable is high carbon mother The material has a good tolerance, so that the high carbon base material can be repaired and the cost is reduced.
進一步的取本發明之RolClad與對照組1進行銲接測試,測試標的為碳含量為1.2%的高碳母材,RolClad與對照組1之金屬成分比例如表4所示:。Further, the RolClad of the present invention was subjected to a soldering test with the control group 1 to test a high carbon base material having a carbon content of 1.2%, and the metal component ratio of the RolClad to the control group 1 is as shown in Table 4:
抗銲接熱裂敏感度的實驗條件如下:The experimental conditions for resistance to solder thermal cracking are as follows:
銲接參數:400A/30V/ESO30mm/40cpm;Welding parameters: 400A/30V/ESO30mm/40cpm;
銲接預熱溫度:350℃;Welding preheating temperature: 350 ° C;
使用銲材:RolClad與上面表4所列示的對照組1;以及使用母材:軸承鋼SUJ2(碳含量為1.2%的高碳母材)。The welding consumables were used: RolClad and the control group 1 shown in Table 4 above; and the base material: bearing steel SUJ2 (high carbon base material having a carbon content of 1.2%).
其對照組1銲接於碳含量為1.2%的高碳母材的結果如圖6A與圖6B所示,於圖6A即可清楚可見一熱裂組織產生,將銲道放大觀察,銲道中央產生一熱裂組織且產生具有一致方向性的熱裂紋,以銲接金相組織觀察,發現對照組1的銲道組織呈現平滑的柱狀晶,此種類型的組織所產生的應力大且裂紋容易沿著柱狀晶組織的晶界裂開;RolClad銲接於碳含量為1.2%的高碳母材的結果如圖7A與圖7B所示,將銲道放大觀察,並無熱裂組織產生,因此可證實本發明之RolClad對於高碳母材有高度的忍受度,不易產生熱裂紋,以銲接金相組織觀察,發現RolClad的銲道組織呈現樹枝狀組織,此種類型的組織所產生的應力小,且若當細小裂紋產生時,其樹枝化的晶界呈彎曲或不連續狀可阻礙裂紋成長,當RolClad之鉬含量大於1.4%時,可以使銲道凝固組織晶粒細化以及產生樹枝狀組織,是降低銲接熱裂產生的主要機制。The results of the control group 1 welded to the high carbon base material having a carbon content of 1.2% are shown in Fig. 6A and Fig. 6B. In Fig. 6A, a hot cracked structure can be clearly seen, and the weld bead is enlarged and observed, and the weld bead is generated in the center. A hot cracked structure and hot cracks with uniform directionality were observed. The weld metallographic structure of the control group 1 showed smooth columnar crystals. The stress generated by this type of structure was large and the cracks were easy to follow. The grain boundary of the columnar crystal structure is cracked; the result of welding RolClad to a high carbon base material having a carbon content of 1.2% is as shown in FIG. 7A and FIG. 7B, and the weld bead is enlarged and observed, and no hot cracked structure is generated, so It is confirmed that the RolClad of the present invention has high tolerance to high-carbon base materials and is not prone to thermal cracking. It is found that the weld bead structure of RolClad exhibits dendritic structure by welding metallographic structure, and the stress generated by this type of structure is small. And when a small crack is generated, the dendrite grain boundary is curved or discontinuous to hinder the crack growth. When the molybdenum content of RolClad is more than 1.4%, the grain solidification of the bead can be refined and the dendritic structure is generated. Is lowering The main mechanism of welding hot cracking.
取本發明的RolClad進行抗銲接熱裂敏感度,改變RolClad的鉬的含量進行測試。The RolClad of the present invention was tested for resistance to solder thermal cracking and the content of molybdenum of RolClad was changed.
抗銲接熱裂敏感度的實驗條件如下:The experimental conditions for resistance to solder thermal cracking are as follows:
銲接參數:400A/30V/ESO30mm/40cpm;Welding parameters: 400A/30V/ESO30mm/40cpm;
銲接預熱溫度:350℃;Welding preheating temperature: 350 ° C;
使用銲材:RolClad;Use welding consumables: RolClad;
銲材之鉬含量重量百分比:0%、0.15%、0.35%、0.55%、0.57%、0.6%、0.65%、0.67%、0.7%、1%、1.2%、1.3%、1.4%、1.45%、1.5%、1.52%、1.75%、2%、2.1%、2.25%、2.34%、2.65%、2.7%、3.1%;以及Molybdenum content of welding consumables: 0%, 0.15%, 0.35%, 0.55%, 0.57%, 0.6%, 0.65%, 0.67%, 0.7%, 1%, 1.2%, 1.3%, 1.4%, 1.45%, 1.5%, 1.52%, 1.75%, 2%, 2.1%, 2.25%, 2.34%, 2.65%, 2.7%, 3.1%;
使用母材:軸承鋼SUJ2。Use base metal: bearing steel SUJ2.
實驗結果如圖8所示,RolClad之鉬含量越高,當鉬含量超過約1.4%時,銲接熱裂的比率趨近於零,表示銲接熱裂的現象幾乎沒有發生。The experimental results are shown in Fig. 8. The higher the molybdenum content of RolClad, when the molybdenum content exceeds about 1.4%, the ratio of weld thermal cracking approaches zero, indicating that the phenomenon of weld hot cracking hardly occurs.
本發明之RolClad經測試後之較佳具體實施例,各金屬元素之成份百分比如表4所示:In a preferred embodiment of the RolClad of the present invention, the percentage of each metal element is as shown in Table 4:
將RolClad、對照組1與對照組2的應用特性進行比較,其結果如表5所示:The application characteristics of RolClad, control group 1 and control group 2 were compared, and the results are shown in Table 5:
由前述實驗可得本發明之RolClad各物理特性佳,可忍受高碳母材的稀釋,並且不會產生銲接熱裂,可應用於高碳母材的硬面修補。According to the foregoing experiment, the RolClad of the present invention has good physical properties, can withstand the dilution of the high-carbon base material, and does not cause welding hot cracking, and can be applied to the hard surface repair of the high-carbon base material.
以上所述僅是本發明之較佳實施例,並非對本發明作任何形式上的限制,雖然本發明已以較佳實施例揭露如上,然而並非用以限定本發明,任何熟悉本專業之技術人員,在不脫離本發明之技術方案的範圍內,當可利用上述揭示的技術內容作些許更動或修飾為等同變化的等效實施例,但凡是未脫離本發明之技術方案內容,依據本發明的技術實質對以上實施例作的任何簡單修改、等同變化與修飾,均仍屬於本發明技術方案的範圍內。The above is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention. The present invention has been described above by way of a preferred embodiment, but is not intended to limit the invention, and any skilled person skilled in the art. The equivalent embodiments of the above-disclosed technical contents may be modified or modified to equivalent variations, without departing from the technical scope of the present invention, and in accordance with the present invention, without departing from the scope of the present invention. It is still within the scope of the technical solution of the present invention to make any simple modifications, equivalent changes and modifications to the above embodiments.
圖1A為本發明與圖1B為對照組2進行耐孔蝕性測試的結果比較。1A is a comparison of the results of the pitting resistance test of the control group 2 of FIG. 1B with the present invention.
圖2為本發明調整其鉬含量進行抗回火軟化測試之結果。Figure 2 is a graph showing the results of an anti-temper softening test in which the molybdenum content of the present invention is adjusted.
圖3A與圖3B為對照組3銲接於碳含量0.6%之高碳母材的銲道圖。其中圖3B為圖3A之放大圖。3A and 3B are weld bead diagrams of the control group 3 welded to a high carbon base material having a carbon content of 0.6%. FIG. 3B is an enlarged view of FIG. 3A.
圖4A與圖4B為對照組4銲接於碳含量0.6%之高碳母材的銲道圖。其中圖4B為圖4A之放大圖。4A and 4B are weld bead diagrams of the control group 4 welded to a high carbon base material having a carbon content of 0.6%. 4B is an enlarged view of FIG. 4A.
圖5A與圖5B為對照組5銲接於碳含量0.6%之高碳母材的銲道圖。其中圖5B為圖5A之放大圖。5A and 5B are weld bead diagrams of the control group 5 welded to a high carbon base material having a carbon content of 0.6%. FIG. 5B is an enlarged view of FIG. 5A.
圖6A與圖6B為對照組1銲接於碳含量1.2%之高碳母材的銲道圖。其中圖6B為圖6A之放大圖。6A and 6B are weld bead diagrams of the control group 1 welded to a high carbon base material having a carbon content of 1.2%. 6B is an enlarged view of FIG. 6A.
圖7A與圖7B為本發明銲接於碳含量1.2%之高碳母材的銲道圖。7A and 7B are weld bead diagrams of a high carbon base material welded to a carbon content of 1.2% according to the present invention.
圖8為本發明調整其鉬含量進行銲接熱裂敏感度測試之結果。Figure 8 is a graph showing the results of testing the thermal cracking sensitivity of the present invention by adjusting its molybdenum content.
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TW460357B (en) * | 2000-10-12 | 2001-10-21 | Tien Tai Electrode Co Ltd | Solder alloy material for maintaining rollers resistant to high temperature wearing |
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