盛世彩票
歡迎訪問東莞市至賢五金制品有限公司官方網站!
至賢五金制品
— zhixian Hardware products —
至賢五金制品
至賢 — 精湛的鑄造技術
鑄鋁、鑄銅、鑄鐵、機械加工等其他鑄造件
130-6612-6442
4公司動態
您的位置:首頁  ->  公司動態 -> 精密制模材料需要滿足的7大基本條件

精密制模材料需要滿足的7大基本條件


  制造熔模的材料稱為模料。為了得到高品質的熔模,必須選擇合適的模料。由于精密鑄造的工序較多,因此對模料性能的要求也是多方面的。用于精密鑄造的制模材料應在下述性能方面滿足一定的要求。
  1、焊接性
  模料的焊接性表示模料相互之間的接合性能。將單個的熔模組合成模組時,要求模料有良好的焊接性能和較高的焊接強度,這樣便于熔模的組合,并避免模組在運輸和制殼時自焊接處發生斷裂。
  2、涂掛性
  模料對耐火涂料的潤濕親和性能稱為涂掛性。制殼時,要求熔模表面能被耐火涂料很好地潤濕,均勻地涂覆一層。模料涂掛性的好壞直接影響到型殼內腔形狀的完整及表面光潔。
  3、熔點
  適合精密鑄造生產所用的模料其熔點不宜過高或過低,一般在60℃~100℃范圍內。因為根據模料的一般性能,熔點適中時,熔模具有一定的強度和熱穩定性;同時便于配制模料、制備和熔失熔模、適應生產機械化和自動化以及縮短生產周期的要求。
  4、收縮率
  模料的收縮率以“圓餅試樣”在一定的溫度范圍內冷卻時的直徑變化百分率表示。對模料收縮率的要求,一般希望小于I.2%,使熔模上不出現縮凹等缺陷,而且其值穩定。模料收縮率小,能使熔模的尺寸更接近于壓型型腔的尺寸,并能減少冷卻時的扭曲變形,從而保證熔模的精度。
  5、熱穩定性
  標準試祥在加熱時,以變形撓度達2 mm時的溫度為模料的軟化點即熱穩定性。模料的軟化點一般不宜低于35℃~40℃,否則在夏季將很難保證熔模的強度和精度。根據實際經驗,模料的軟化點應比制模及制殼工作場地的溫度高出10℃~15℃為宜。
  6、流動性
  模料在一定的條件下充填壓型型腔的能力稱為流動性。模料應具有良好的流動性,這樣有利于完滿而清晰地復制出壓型型腔的表面,從而得到形狀準確和表面光潔的熔模;同時也便于模料從型殼中熔出。
  7、強度和塑性
  模料的強度通常以標準試樣的抗彎和抗拉強度表示。為保證熔模精密鑄造在組合、儲存及制殼等過程中,受搬動、震動、沖擊的作用下不損壞、不變形或少變形,這就要求模料在常溫下有足夠的力學性能。用于小件的模料其抗拉強度最好大于1.4 MPa,而大件模料則應不小于2.5MPa。
[返回]   
官方手機站
官方手機站
官方微信
微信公眾號
地 址:東莞市大朗鎮新馬蓮村水圍區28號
電 話:0769-82226849
聯系人:黃先生/13066126442
聯系人:黃小姐/15920348799
郵 箱:3168460054@qq.com
網 址:www.svy7.com
東莞市至賢五金制品有限公司 版權所有 Copyright 2017 技術支持:東莞網站建設 [Bmap] [Gmap] 訪問量: 【百度統計】 [后臺管理] 粵ICP備17117997號-1
微信小程序
微信小程序
盛世彩票

      <form id="frhjt"></form>

          <form id="frhjt"></form>

                1489vip.com | www.773bbb.com | 2021b.com | 1590.co | www.h98478.com | 7007570.com | www.yf2112.com | www.938627.com | 72239.com | www.hg3636.com | www.21365bet.com | shenqibc.com | www.24559.com | www.596233.com | 931750.com | www.765703.com | 20776644.com | www.110476.com | www.330836.com | 272x.net | www.6482x.com | 039da.com | www.5049m.com | 111122hh.com | www.655666g.com | www.ybao2.com | 8381009.com | www.272018.com | hg128.xyz | www.91955.com | P35ss.com | 3846xx.com | www.4996yn.com | 3473o.com | www.xxk6386.com | 6118a.com | www.32126y.net | www.629813.com | www.a3a666.cc | www.158cp.com | 3254.com | www.78949f.com | 00qq8331.com | www.84158.com | 3950a.com | www.88325j.com | JS1388j.com | www.cn365v.com | 1294h.com | www.9c456.com | qq365l.com | www.67df.com | 112d.net | www.22666.com | 33318s.com | www.629820.com | 11000.com | www.138578.com | 316c.cc | www.a.pj1308.com | aaa444000.com | www.62979y.com | 4060kk.com | www.999qipai.com | 8977jj.com | www.55558c.com | 3225c.com | www.922873.com | www.hg8086.com | www.324877.com | www.xpj04666.com | l2894.com | www.0788msc.com | 3473m.com | www.14k0048.com | vip0040.com | www.89777q.com | 50000990.com | www.fyyy1.com | www.654bet.com | www.55228i.com | www.63328.cc | 118888h.com | www.97994b.com | 91019f.com | www.11081.cc | www.v0040.com | qq365t.com | www.1304567.com | 30007l.com | www.0343.com | 668cp.com | www.677397.com | www.js60a.com | 3640t.com | www.91779e.com | 28288k.com | www.qucp4.com | www.5511sb.com | xinpj1500.com | www.4058tt.com | 32yxw.com | www.hm2333.com | www.745128.com | 78114444.com | www.x94600.com | 2629.com | www.309877.com | www.789msc.com | bbb444000.com | www.09500w.com | www.v22365.com | 5651q.com | www.418587.com | feicai0352.com | www.025728.com | www.9737hh.com | qq365.com | www.582914.com | www.dzh1133.com | lswjs808.com | www.ch8911.com | www.vns7525.com | v997e.com | www.08588n.com | www.6403jj.com | 3405yy.com | www.50052f.com | www.opbet.cc | 5099uu.com | www.8667a.com | www.894929.com | 011722.com | www.sytg7.com | www.100449.com | 3890j.com | www.827737.com | www.69249.com | wlb777.com | www.106165.com | www.46630.vip | 71088.com | 20774444.com | www.764169.com | www.xpj88003.com | u8381.com | www.hcjt6.com | www.zte222.com | 44ll8332.com | jianwei.com | www.68365d.com | www.v17888.com | 5651b.com | www.ct8800.com | www.559159.com | 2418m.com | 667766r.com | www.88266x.com | www.pj5719.com | 88903636.com | www.99677a.com | www.hg0081.com | www.443447.com | 8790w.com | www.zfcp1.com | www.51705.com | 8790l.com | 178120.com | www.1368t.cc | www.c72.com | 1634b.com | 1222p.com | www.927035.com | www.89677k.com | www.hg8004.com | 3679rr.com | www.840774.com | www.533880.com | www.4107i.com | 38365d.com | www.126293.com | www.js18684.com | www.115385.com | 168b3.com | s8381.com | www.771746.com | www.3032dd.com | www.96662949.com | 5309l.com | 8988w.com | www.okw2.com | www.158024.com | www.2846x.com | 2096n.com | vwin116.com | www.07088.com | www.vip17.bet365zhongguo8.com | 9103jj.com | 7894v.com | www.73166a.com | www.21202e.com | www.90644.com | www.365109b.com | qpby2277.com | 3mgmjjj.com | www.870933.com | www.4809a.com | www.2206132.com | www.0686555.com | vip4357.com | 8822vn77.com | www.890886.com | www.bet3651688.com | www.i4042.com | www.333222g.com | e99345.am | 3678l.com | www.295126.com | www.54400m.com | www.513950.com | www.137479.com | www.yxlm33.com | 38054913.com | 1389oo.com | 80368p.com | www.c1825.com | www.xh389.com | www.99113u.com | www.349989.com | 5446bb.com | 001122332.com | 8722.com | 00774qq.com | www.725660.com | www.99788l.com | www.6687e.com | www.k00444.com | www.88837f.com | 75991q.com | 62222n.com | nn500y.com | d7742.com | www.156506.com | www.976731.com | www.27363l.com | 2643h.com | 66287i.com | 44999193.com | 0132.com | www.355294.com | www.ya958.com | www.sx13997.com | www.40288i.com | www.85857f.com | www.betqam.com | www.alpk77.com | 69990v.com | hjdc2018.com | 4060pp.com | 83378z.com | 29918zz.com | www.66652a.com | www.743533.com | www.2cpb.com | www.66332w.com | www.902cq.com | www.58908c.com | www.bet63u.com | www.668hyc.com | www.277tk.com | www.hg9940.com | www.hg066.com | www.vtm005.com | 6868001.cc | w47479.com | 8569811p.com | 87965yy.com | 97297p.com | 40033nnn.com | e8159.cc | 7605t.com | 69443322.com | eee444000.com | 8fll8.com | 00773c.com | 4647055.com | www.19019t.com | www.833099.com | www.js7669.com | www.32666a.com | www.xpj6878.com | www.7830x.com | www.v27229.com | www.3643n.com | www.912suncity.com | www.2846a.com | www.xinpujing888.vip | www.44220151.com | www.091646.com | www.66136cc.com | www.x8882.com | www.vns1033.com | www.b01885.com | www.919205.com | www.8887hj.com | www.4196c.com | www.614986.com | www.085993.com | www.6482n.com | www.41518j.com | www.fan73.com | www.689826.com | www.401269.com | ceeger.com | 5446rr.com | 2267g.com | 7616.com | 3559d.com | 500000952.com | www.js7288.com | www.dh70507.com | www.1596f.com | www.hjcp444.com | www.10999d.com | www.792087.com | www.26163o.com | www.2cpb.com | www.504638.com | 93996.com | 5309e.com | 6766mm.com | 234901.com | www.18735528058.com | www.990333.net | www.129786.com | www.huangma28.com | www.725158.com | www.2109t.com | www.407870.com | 33vn77.com | i83377.com | 36507w.com | www.pj3234.com | www.6uu6uu.com | www.00772w.com | www.0967001.com | www.zcwf5.com | www.026350.com | 3473o.com | 22959.com | 1504.com | www.675923.com | www.4078e.com | www.120782.com | www.865606.com | 1665vv.com | www.hj7987.com | www.376519.com | 3807kk.com | swin9.com | 30006.com | www.msc99.la | www.c3065.com | www.2418v.com | www.869576.com | 588zzz.cc | 009649.com | ambyc8.com | 9435.cc | www.9199sun.com | www.4694t.com | 0208065.com | 5701.com | 92958.com | www.555507.com | www.0600l.cc | www.hx5566.com | 2190n.com | 4165l.com | www.34586.com | www.82gew.com | www.100344.com | www.651012.com | 0363.com | a2306.com | www.38144144.com | www.xpj8668.com | www.807835.com | 73055.vip | 56988r.com | www.am4567.com | www.hg8889.tw |