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单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,单击此处编辑母版标题样式,单击此处编辑母版文本样式,第二级,第三级,第四级,第五级,*,山西,八,八达,镁,镁业,有,有限,公,公司,镁,镁,合,合金,工,工艺,培,培训,作者,:,:,翟,翟海,涛,涛电话,:,:,13653676501,镁的,密,密度,小,小,,易,易于,燃,燃烧,,,,在,空,空气,中,中加,热,热时,,,,金,属,属镁,在,在,632,635,开始,燃,燃烧,。,。液,态,态下,遇,遇到,冷,冷的,工,工具,工,工装,容,容易,发,发生,爆,爆炸,,,,,镁,镁的,制,制备,及,及合,金,金冶,炼,炼工,艺,艺比,较,较复,杂,杂。,在,在纯,镁,镁中,加,加入,铝,铝、,锌,锌、,锂,锂、,锰,锰、,锆,锆,,铍,铍,,锶,锶和,稀,稀土,等,等元,素,素形,成,成的,镁,镁合,金,金具,有,有较,高,高的,强,强度,,,,可,以,以作,为,为结,构,构材,料,料广,泛,泛应,用,用。,镁,镁合,金,金材,料,料具,有,有以,下,下优,点,点:,(,1,)重,量,量轻,镁,镁合,金,金比,重,重在,所,所有,结,结构,用,用合,金,金中,属,属于,最,最轻,者,者,,它,它的,比,比重,为,为铝,合,合金,的,的,,,,锌,合,合金,的,的,,,,钢,铁,铁的,,,它,它除,了,了做,产,产品,的,的外,壳,壳、,内,内部,结,结构,件,件外,,,,还,是,是汽,车,车、,飞,飞机,等,等零,件,件的,优,优秀,材,材料,。,。,(,2,)比,强,强度,、,、比,刚,刚度,高,高,镁,镁,合,合金,的,的比,强,强度,明,明显,高,高于,铝,铝合,金,金和,钢,钢,,比,比刚,度,度与,铝,铝合,金,金和,钢,钢相,当,当,,而,而远,远,远高,于,于工,程,程塑,料,料,,为,为一,般,般塑,料,料的,10,倍。,(,3),耐,耐振,动,动性,好,好,在,在,相,相同,载,载荷,下,下,,减,减振,性,性是,铝,铝的100倍,,,,钛,合,合金,的,的300,500,倍,倍。,一、,镁,镁及,镁,镁合,金,金的,性,性质,(4,),)电,磁,磁屏,蔽,蔽性,佳,佳3,产,品,品的,外,外壳,(,(手,机,机及,电,电脑,等,等),要,要能,够,够提,供,供优,越,越的,抗,抗电,磁,磁保,护,护作,用,用,,而,而镁,合,合金,外,外壳,能,能够,完,完全,吸,吸收,频,频率,超,超过,的,电,电磁,干,干扰,。,。,(5,),)散,热,热性,好,好,一,一,般,般金,属,属的,热,热传,导,导性,是,是塑,料,料的,数,数百,倍,倍,,镁,镁合,金,金的,热,热传,导,导性,略,略低,于,于铝,合,合金,及,及铜,合,合金,,,,远,高,高于,钛,钛合,金,金,,比,比热,则,则与,水,水接,近,近,,是,是常,用,用合,金,金中,最,最高,者,者。,(6,),)质,感,感佳,镁,镁合,金,金的,外,外观,及,及触,摸,摸质,感,感极,佳,佳,,使,使产,品,品更,具,具豪,华,华感,。,。,(7,),)可,回,回收,性,性好,只,只要,花,花费,相,相当,于,于新,料,料价,格,格的4%,,,,就,可,可将,镁,镁合,金,金制,品,品及,废,废料,回,回收,利,利用,。,。,(8,),)稳,定,定的,资,资源,提,提供,:,:,镁,镁元,素,素在,地,地壳,中,中的,储,储量,居,居第,八,八位,,,,大,部,部分,的,的镁,原,原料,自,自海,水,水中,提,提炼,,,,所,以,以它,的,的资,源,源稳,定,定、,充,充分,。,。,(9),主,主要,用,用于,,,,汽,车,车,,航,航空,,,,电,子,子,,钢,钢铁,脱,脱硫,,,,,铝,铝合,金,金元,素,素添,加,加,,除,除氧,剂,剂。,一、,镁,镁及,镁,镁合,金,金的,性,性质,二、,镁,镁合,金,金产,品,品种,类,类及,成,成分,要,要求,AZ91D,强度,高,高且,耐,耐腐,蚀,蚀性,好,好,电,电器,产,产品,的,的壳,体,体等,AM60B,延伸,率,率和,抗,抗冲,击,击力,大,大,汽,汽车,上,上的,方,方向,盘,盘和,坐,坐椅,等,等,AM50A,延伸,率,率和,抗,抗冲,击,击力,大,大,汽,汽车,上,上的,方,方向,盘,盘和,坐,坐椅,等,等,AS41B,抗蠕,变,变性,能,能好,汽,汽,车,车上,的,的减,速,速箱,等,等,铝:,改,改善,压,压铸,件,件的,铸,铸造,性,性能,,,,提,高,高铸,件,件强,度,度,,铝,铝含,量,量越,高,高,,耐,耐蚀,性,性越,好,好。,但,但是,有,有形,成,成显,微,微疏,松,松的,倾,倾向,。,。,锌:,锌,锌可,以,以提,高,高铸,件,件的,抗,抗蠕,变,变性,能,能,,对,对防,腐,腐蚀,性,性能,有,有负,面,面影,响,响。,锰:,容,容易,与,与有,害,害杂,质,质元,素,素化,合,合,,从,从而,清,清除,了,了铁,对,对抗,蚀,蚀性,的,的有,害,害影,响,响,,使,使得,腐,腐蚀,速,速率,大,大大,降,降低,。,。Mn在,镁,镁合,金,金中,存,存在,有,有两,类,类作,用,用:,一,一是,作,作为,合,合金,元,元素,,,,可,以,以提,高,高镁,合,合金,的,的韧,性,性,,如,如AM60;,二,二是,形,形成,中,中间,相,相。Mg-Mn系,合,合金,的,的铸,造,造工,艺,艺性,能,能差,,,,凝,固,固收,缩,缩大,,,,热,裂,裂倾,向,向较,高,高。,铍,:,:,在,在,很,很,低,低,浓,浓,度,度,下,下,明,明,显,显,降,降,低,低,熔,熔,体,体,表,表,面,面,氧,氧,化,化,,,,,但,但,导,导,致,致,晶,晶,粒,粒,粗,粗,大,大,。,。,硅,:,:,可,可,形,形,成,成,稳,稳,定,定,化,化,合,合,物,物Mg2Si,对,对,合,合,金,金,起,起,到,到,强,强,化,化,效,效,果,果,,,,,对,对,腐,腐,蚀,蚀,性,性,有,有,害,害,。,。,铁/,铜,铜,:,:,合,合,金,金,中,中,的,的,有,有,害,害,元,元,素,素,,,,,必,必,须,须,严,严,格,格,控,控,制,制,,,,,特,特,别,别,是,是,铁,铁,,,,,对,对,腐,腐,蚀,蚀,性,性,极,极,为,为,不,不,利,利,。,。,牌,号,Al,Zn,Mn,Ni,Si,Cu,Fe,Be,单一,-,范围,(%)-,-,最大,(%)-,AZ91D,8.8-9.3,0.65-0.75,0.18-0.27,0.001,0.45,0.025,0.0025,10-15,0.01,AM60B,5.8-6.4,0.2(,最大,),0.28-0.45,0.001,0.045,0.008,0.0032,6-13,0.01,AM50A,4.7-5.2,0.2(,最大,),0.30-0.45,0.001,0.045,0.008,0.0032,6-13,0.01,三,、,、,八,八,达,达,生,生,产,产,合,合,金,金,成,成,分,分,要,要,求,求,说,明,明,1,),AL,含,量,量,控,控,制,制,:,:,根,根,据,据,废,废,料,料,添,添,加,加,情,情,况,况,来,来,确,确,定,定,,,,,可,可,补,补,加,加,,,,,尽,尽,量,量,避,避,免,免,超,超,高,高,再,再,调,调,整,整,(,(,铝,铝,高,高,镁,镁,锭,锭,调,调,整,整,时,时,,,,,适,适,当,当,延,延,长,长,精,精,炼,炼,时,时,间,间,10MIN,;,如,如,锅,锅,太,太,满,满,,,,,提,提,渣,渣,后,后,调,调,整,整,,,,,在,在,搅,搅,拌,拌,30MIN,),2,),Mn,含,量,量,控,控,制,制,:,:,MnCl670-690,就,开,开,始,始,添,添,加,加,,,,,避,避,免,免,高,高,温,温,烧,烧,损,损,3,),Si,含,量,量,控,控,制,制,:,:,言,言,必,必,信,信,硅,硅,控,控,制,制,在,在,0.45%,,,中,中,科,科,亚,亚,美,美,AZ91D,硅,控,控,制,制,0.55%,4,),Fe,含,量,量,控,控,制,制,:,:,AZ91D,浇,铸,铸,温,温,度,度,控,控,制,制,在,在,640-650,;,AM50A/AM60B,浇,铸,铸,温,温,度,度,控,控,制,制,在,在,655-66,5,5,),Be,含,量,量,控,控,制,制,:,:,圆,圆,坩,坩,埚,埚,里,里,面,面,一,一,次,次,补,补,够,够,,,,,尽,尽,量,量,避,避,免,免,长,长,炉,炉,二,二,次,次,补,补,加,加,牌,号,Al,Zn,Mn,Ni,Si,Cu,Fe,Be,单一,-,范围,(%)-,-,最大,(%)-,AZ91D,8.8-9.3,0.65-0.75,0.18-0.27,0.001,0.45,0.025,0.0025,10-15,0.01,AM60B,5.8-6.4,0.2(,最大,),0.28-0.45,0.001,0.045,0.008,0.0032,6-13,0.01,AM50A,4.7-5.2,0.2(,最大,),0.30-0.45,0.001,0.045,0.008,0.0032,6-13,0.01,三,、,、,八,八,达,达,生,生,产,产,合,合,金,金,成,成,分,分,要,要,求,求,说,明,明,1,),粗,粗,镁,镁,:,:,粗,粗,镁,镁,一,一,般,般,要,要,求,求,表,表,面,面,致,致,密,密,,,,,有,有,金,金,属,属,光,光,泽,泽,,,,,无,无,表,表,面,面,发,发,黑,黑,氧,氧,化,化,严,严,重,重,等,等,现,现,象,象,(,(,当,当,粗,粗,镁,镁,质,质,量,量,过,过,差,差,时,时,,,,,熔,熔,剂,剂,用,用,量,量,适,适,当,当,增,增,加,加,),),。,。,2,),镁,镁,废,废,料,料,:,:,a.,废料,使用时,需,需要注,意,意,Cu,丝、,Ni,片、,Al,合金、,Zn,合金、,钢,钢丝轮,、,、水泥,块,块不要,入,入炉,b.,渣块质,量,量较差,,,,间隔,一,一两炉,添,添加,c.,回收渣,添,添加注,意,意量的,控,控制,,分,分炉,/,间隔添,加,加,保,证,证合金,质,质量,3,)铝锭,:,:,八达进,厂,厂铝锭,为,为,Al99.70,但是对,Fe,有特殊,要,要求(,0.12,),河,津,津铝厂,Fe,一般为,0.20,,不满,足,足进厂,验,验收标,准,准,榆,铝,铝能满,足,足进厂,验,验收标,准,准,4,)氯化,锰,锰,97.00%,5,)锌,锭,锭,99.95%,6,)铝,铍,铍,Be0.9-1.2%,四、八,达,达合金,原,原材料,要,要求,一,),溶解剂,、,、覆盖,剂,剂:,MgCl2-NaCl-KCl,三元系的共晶点、共晶成分,共晶,熔点,/,共晶成分(,%,分子),固相组成,MgCl2,NaCl,KCl,O1,400,35,18,47,KCl,MgCl2,NaCl,2KCl,MgCl2,O2,395,46,32,22,KCl,MgCl2,NaCl,MgCl2,2NaCl,MgCl2,O3,400,39,36,25,KCl,MgCl2,2NaCl,MgCl2,NaCl,名称,成份含量,(%),MgCl2,KCI,CaCl2,NaCl,Ba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