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METHOD FOR PRODUCING METAL FOAM PRECURSOR AND METHOD FOR PRODUCING METAL FOAM meetings

Foreign code F110002892
File No. S2009-0508-C0
Posted date May 9, 2011
Country WIPO
International application number 2010JP052821
International publication number WO 2010/106883
Date of international filing Feb 24, 2010
Date of international publication Sep 23, 2010
Priority data
  • P2009-067212 (Mar 19, 2009) JP
Title METHOD FOR PRODUCING METAL FOAM PRECURSOR AND METHOD FOR PRODUCING METAL FOAM meetings
Abstract The purpose of this invention is to easily produce a metal foam precursor and a metal foam without using an expensive foaming agent powder. Adding alumina when conducting friction stir processing (FSP) improves the sphericity of the pores in a metal foam and increases the porosity of the metal foam. A die-cast molding (12) that contains gas in the interior is prepared by means of die-casting. Next, a metal foam precursor (16) is produced by dispersing the gas and pore-forming nuclei contained in the interior of the die-cast molding (12) uniformly in the die-cast molding (12) by means of FSP. The metal foam precursor (16) is expanded through a heat treatment that heats the metal foam precursor (16) to near the melting point thereof to produce a metal foam.
Scope of claims (In Japanese)
【請求項1】 ダイカスト法により内部にガスを含有するダイカスト成形品を作製する工程と、
 前記ダイカスト成形品の内部に含有するガス及び気孔形成核を摩擦撹拌処理により前記前記ダイカスト成形品中に分散させて発泡体金属前駆体を作製する工程と
 を含むことを特徴とする発泡金属前駆体の製造方法。

【請求項2】 前記ダイカスト成形品の内部に含有するガス及び気孔形成核の前記ダイカスト成形品中への分散を均一に行う請求項1記載の発泡金属前駆体の製造方法。

【請求項3】 前記摩擦撹拌処理を行うときに前記ダイカスト成形品にアルミナを添加する請求項1記載の発泡金属前駆体の製造方法。

【請求項4】 前記ダイカスト成形品のうち前記摩擦撹拌処理により撹拌された部分を100質量%とするとき前記アルミナを10質量%以下添加する請求項3記載の発泡金属前駆体の製造方法。

【請求項5】 前記ダイカスト成形品を2枚作製し、前記2枚のダイカスト成形品のいずれか一方の表面にアルミナ粒子を散布した後に、前記アルミナ粒子を挟むように前記2枚のダイカスト成形品を積層して摩擦撹拌処理を行う請求項3又は4記載の発泡金属前駆体の製造方法。

【請求項6】 請求項1ないし5いずれか1項に記載の方法で製造された発泡金属前駆体をこの発泡金属前駆体の融点近傍まで加熱する熱処理を行うことにより、前記発泡金属前駆体を発泡させる発泡金属の製造方法。

【請求項7】 請求項1ないし5いずれか1項に記載の方法で製造された発泡金属前駆体。

【請求項8】 請求項6に記載の方法で製造された発泡金属。
  • Applicant
  • ※All designated countries except for US in the data before July 2012
  • National University Corporation Gunma University
  • Shibaura Institute of Technology
  • Inventor
  • HANGAI, Yoshihiko
  • UTSUNOMIYA, Takao
IPC(International Patent Classification)
Specified countries AE(UTILITY MODEL),AG,AL(UTILITY MODEL),AM(PROVISIONAL PATENT)(UTILITY MODEL),AO(UTILITY MODEL),AT(UTILITY MODEL),AU,AZ(UTILITY MODEL),BA,BB,BG(UTILITY MODEL),BH(UTILITY MODEL),BR(UTILITY MODEL),BW,BY(UTILITY MODEL),BZ(UTILITY MODEL),CA,CH,CL(UTILITY MODEL),CN(UTILITY MODEL),CO(UTILITY MODEL),CR(UTILITY MODEL),CU(INVENTOR'S CERTIFICATE),CZ(UTILITY MODEL),DE(UTILITY MODEL),DK(UTILITY MODEL),DM,DO(UTILITY MODEL),DZ,EC(UTILITY MODEL),EE(UTILITY MODEL),EG(UTILITY MODEL),ES(UTILITY MODEL),FI(UTILITY MODEL),GB,GD,GE(UTILITY MODEL),GH(UTILITY CERTIFICATE),GM,GT(UTILITY MODEL),HN(UTILITY MODEL),HR(CONSENSUAL PATENT),HU(UTILITY MODEL),ID,IL,IN,IS,JP(UTILITY MODEL),KE(UTILITY MODEL),KG(UTILITY MODEL),KM,KN,KP(INVENTOR'S CERTIFICATE)(UTILITY MODEL),KR(UTILITY MODEL),KZ(PROVISIONAL PATENT)(UTILITY MODEL),LA,LC,LK,LR,LS(UTILITY MODEL),LT,LU,LY,MA,MD(UTILITY MODEL),ME,MG,MK,MN,MW,MX(UTILITY MODEL),MY(UTILITY-INNOVATION),MZ(UTILITY MODEL),NA,NG,NI(UTILITY MODEL),NO,NZ,OM(UTILITY MODEL),PE(UTILITY MODEL),PG,PH(UTILITY MODEL),PL(UTILITY MODEL),PT(UTILITY MODEL),RO,RS(PETTY PATENT),RU(UTILITY MODEL),SC,SD,SE,SG,SK(UTILITY MODEL),SL(UTILITY MODEL),SM,ST,SV(UTILITY MODEL),SY,TH(PETTY PATENT),TJ(UTILITY MODEL),TM(PROVISIONAL PATENT),TN,TR(UTILITY MODEL),TT(UTILITY CERTIFICATE),TZ,UA(UTILITY MODEL),UG(UTILITY CERTIFICATE),US,UZ(UTILITY MODEL),VC(UTILITY CERTIFICATE),VN(PATENT FOR UTILITY SOLUTION),ZA,ZM,ZW,EP(AT,BE,BG,CH,CY,CZ,DE,DK,EE,ES,FI,FR,GB,GR,HR,HU,IE,IS,IT,LT,LU,LV,MC,MK,MT,NL,NO,PL,PT,RO,SE,SI,SK,SM,TR),OA(BF(UTILITY MODEL),BJ(UTILITY MODEL),CF(UTILITY MODEL),CG(UTILITY MODEL),CI(UTILITY MODEL),CM(UTILITY MODEL),GA(UTILITY MODEL),GN(UTILITY MODEL),GQ(UTILITY MODEL),GW(UTILITY MODEL),ML(UTILITY MODEL),MR(UTILITY MODEL),NE(UTILITY MODEL),SN(UTILITY MODEL),TD(UTILITY MODEL),TG(UTILITY MODEL)),AP(BW(UTILITY MODEL),GH(UTILITY MODEL),GM(UTILITY MODEL),KE(UTILITY MODEL),LS(UTILITY MODEL),MW(UTILITY MODEL),MZ(UTILITY MODEL),NA(UTILITY MODEL),SD(UTILITY MODEL),SL(UTILITY MODEL),SZ(UTILITY MODEL),TZ(UTILITY MODEL),UG(UTILITY MODEL),ZM(UTILITY MODEL),ZW(UTILITY MODEL)),EA(AM,AZ,BY,KG,KZ,MD,RU,TJ,TM)
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