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    • 2. 发明公开
    • 고온 피로 강도가 우수한 알루미늄 합금 단조재
    • 铝合金锻造材料在高温疲劳强度方面表现出色
    • KR1020050030470A
    • 2005-03-30
    • KR1020030066988
    • 2003-09-26
    • 가부시키가이샤 고베 세이코쇼
    • 가미타카하라야스키가쓰라도시히로나카이마나부와타나베야스아키
    • C22C21/12
    • C22C21/16C22F1/057
    • To provide an aluminum alloy forged material having excellent high temperature characteristics such as heat resistance and high temperature strength as well as excellent high temperature fatigue strength. The aluminum alloy forged material excellent in high temperature fatigue strength comprises 4.0 to 7.0 wt.% of Cu, 0.2 to 0.4 wt.% of Mg, 0.05 to 0.7 wt.% of Ag, and 0.05 to 0.15 wt.% of V, wherein a distribution density of Al-V based precipitates in structure of the forged material is 1.5 or more Al-V based precipitates/(mum)^3. The aluminum alloy forged material excellent in high temperature fatigue strength is manufactured by a method comprising the steps of homogenization heat treating an aluminum alloy casting material comprising 4.0 to 7.0 wt.% of Cu, 0.2 to 0.4 wt.% of Mg, 0.05 to 0.7 wt.% of Ag, and 0.05 to 0.15 wt.% of Vat a temperature of 500 to 535 deg.C for 15 hours or more, hot forging the homogenization heat treated aluminum alloy at a temperature of 280 to 430 deg.C, solution treating the hot forged aluminum alloy at a temperature of 510 to 545 deg.C, and quenching the solution treated aluminum alloy.
    • 提供具有优异的耐热性和高温强度等高温特性以及优异的高温疲劳强度的铝合金锻造材料。 优异的高温疲劳强度的铝合金锻造材料包含Cu:4.0〜7.0重量%,Mg:0.2〜0.4重量%,Ag:0.05〜0.7重量%,V:0.05〜0.15重量% Al-V系沉淀物在锻造材料结构中的分布密度为1.5以上Al-V系沉淀物/(母体)^ 3。 通过包括以下步骤的方法制造高温疲劳强度优异的铝合金锻造材料:包含4.0〜7.0重量%的Cu,0.2〜0.4重量%的Mg,0.05〜0.7的铝合金铸造材料 Ag,0.05〜0.15重量%的Vat,温度为500〜535℃,15小时以上,在280〜430℃的温度下对均质化热处理的铝合金进行热锻, 在510〜545℃的温度下处理热锻铝合金,淬火处理后的铝合金。
    • 8. 发明公开
    • 알루미늄 합금 단조재 및 그 제조방법
    • 铝合金锻造及其生产方法
    • KR1020090109590A
    • 2009-10-20
    • KR1020097019029
    • 2008-03-13
    • 가부시키가이샤 고베 세이코쇼
    • 이나가키요시야나카이마나부후쿠다아츠미
    • C22C21/06B21C23/00B21J1/00B22D1/00
    • C22C21/02B21J5/00C22C21/06C22C21/08C22F1/00C22F1/05
    • The invention provides aluminum alloy forgings having high strength, toughness, and corrosion resistance which cope with the demand for thinner walls of automotive suspension parts and a process for the production of the forgings. An aluminum alloy forging constituted of an aluminum alloy which contains prescribed amounts of Mg, Si, Mn, Fe, Zn, Cu, Cr, Zr and Ti with the balance consisting of Al and unavoidable impurities and has a hydrogen gas concentration of 0.25ml/100g of Al or below, in which forging the area ratio of Mg2Si of 0.1μm or above in maximum length is 0.15% or below; the degree of recrystallization of the alloy is 20% or below; and the indication of size distribution of dispersed particles of the alloy is 0.20 or above as defined by V/r (wherein V is area ratio [%] of dispersed particles and r is mean radius [nm] of dispersed particles).
    • 本发明提供了具有高强度,韧性和耐腐蚀性的铝合金锻件,其能够满足对汽车悬架部件的较薄壁的需求以及用于生产锻件的方法。 一种铝合金锻造,其由含有规定量的Mg,Si,Mn,Fe,Zn,Cu,Cr,Zr和Ti的铝合金构成,余量由Al和不可避免的杂质构成,氢气浓度为0.25ml / 100g Al或以下,其中锻造Mg2Si的最大长度为0.1μm以上的面积比为0.15%以下; 合金的再结晶度为20%以下; 并且合金的分散颗粒的尺寸分布的指示为如V / r(其中V为分散颗粒的面积比[%],r为分散颗粒的平均半径[nm])所定义的0.20或更高。
    • 9. 发明公开
    • 알루미늄합금 단조 부재 및 그 제조 방법
    • 铝合金锻造件及其制造方法
    • KR1020080102414A
    • 2008-11-25
    • KR1020087023855
    • 2007-03-23
    • 가부시키가이샤 고베 세이코쇼
    • 나카이마나부이나가키요시야후쿠다아츠미
    • C22C19/03
    • B21K1/12C22C21/02C22C21/06C22F1/00C22F1/05
    • This invention provides an aluminum alloy forging material, which has realized enhanced strength, enhanced toughness, and enhanced corrosion resistance, and a process for producing the same. The aluminum alloy forging material is produced so as to have a specific chemical composition under specific production conditions and is an aluminum alloy forging material (1) which has an arm part (2) of an approximately H shape in cross section and comprises a peripheral rib (3) having a relatively narrow width and a large thickness and a central web (4) having a small thickness of 10 mm or less and a relatively large width. The enhanced strength, enhanced toughness and enhanced corrosion resistance have been realized by specifying the density of a crystallized product observed in a microstructure in a cross-sectional site (7), where the maximum stress occurs, in the cross section in the widthwise direction at the maximum stress producing site in a rib (3a), the spacing between grain boundary precipitates observed in a microstructure at a cross-sectional site (8) including a parting line and the size and density of dispersed particles, the proportion of recrystallization observed in cross-sectional microstructures (7, 8) of the ribs, and the proportion of recrystallization observed in a cross-sectional microstructure (9)in the widthwise direction of the web (4a) adjacent to the cross-sectional microstructure of the rib (3a).
    • 本发明提供一种铝合金锻造材料及其制造方法,其实现了强度提高,韧性提高,耐腐蚀性提高。 制造铝合金锻造材料,以在特定的生产条件下具有特定的化学成分,并且是铝合金锻造材料(1),其具有截面为大致H形的臂部分(2),并且包括周向肋 (3)具有相对较窄的宽度和较大的厚度,以及具有10mm或更小的较小厚度和较大宽度的中心腹板(4)。 通过在宽度方向的横截面中规定在发生最大应力的截面部位(7)中观察到的微观结构中观察到的结晶化物的密度,实现了增强的强度,增强的韧性和增强的耐腐蚀性 在肋(3a)中的最大应力产生位置,在包括分型线的横截面位置(8)处的微观结构中观察到的晶界析出物之间的间距和分散颗粒的尺寸和密度,观察到的再结晶比例 肋的横截面微结构(7,8)以及在与肋(3a)的横截面微结构相邻的幅材(4a)的宽度方向上的横截面微结构(9)中观察到的再结晶比例 )。