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,压帽盖?,锁紧螺丝?/span><span>四,本体(阀体)?,铸造本体;2,热锻压本体?,新技术本体?/span><br /> <span>水龙头阀体工?-<a href="www.vspsouthbay.com" target="_blank"><strong>铸造工艺之</strong><strong>翻砂模具</strong></a></span><br /> <span>      在介绍水龙头阀体工艺前先让我们了解一下什么是水龙头的阀体。水龙头阀体称:阀体,主体,壳体,本体等称呼。主要是阀芯、固定件、内部水路等的一个载体。通俗点就是把阀芯、安装固定件、出水件等都可以装上其上面的一个东东。且内部设计有冷水、热水及混合水的路径,或者叫水路?/span><br /> <span>通常水龙头的阀体是由黄铜材料制作。铜?-熔化--倒入模具--冷却成型--精加?-抛光--电镀。对了,水龙头阀体可以是一体成型;也可以是多部件拼结而成。具体原因与水龙头阀体形状、要求及制造成本有一定关联?/span><br />               <img src="/uploads/image/20190325/20190325113618_4341.jpg" alt="宁波翻砂模具? width="500" height="312" title="宁波翻砂模具? align="" /><br /> <span>       我们这期就先来说一下最先使用的水龙头阀体工?---翻砂。在讲翻砂工艺前先把几个词给捋一捋。铸造,翻砂,浇铸,压铸,重力铸造,重力浇铸,压力铸造,低压铸造?/span><span>铸造是所有后面这些词的统称?/span><span>我们把铸造分成浇铸与压铸两种大类型。浇铸是让液化材料在常压下进入模具腔内;压铸是对液化材料加压注入模具腔内。凭这一点我们就好理解了?/span><span>那么翻砂,重力铸造,重力浇铸都属于浇铸?/span><span>同理压力铸造,低压铸造就属于压铸这一范畴?/span><span>压铸相对于浇铸就会显得更精密,也称精密铸造?/span><span>我们再看一下图就好理解了?/span><br /> <span>       翻砂?strong><a href="www.vspsouthbay.com" target="_blank">翻砂模具</a></strong>就是指这种工艺制作过程中会大量的用到砂。呵呵,好像这样说也没有?</span><br /> <p> <span>其实翻砂只是个俗称,高大上的名称叫“砂型铸造”。铸造前先在下半型模上套边框成沙箱,在模型上撒脱剂,再填一定湿度的砂压实并刮平。上半型模也如法制作。把上,下型砂模合好,砂型造完等待浇铸。当然在合模前还得装入砂芯,可以获得内部中空的零件。翻砂过程,翻砂模,说到翻砂就要先了解下模具,翻砂模通常以木头为主要材料,所以也叫木模叫柴模或称沙箱?strong><a href="www.vspsouthbay.com" target="_blank">翻砂模具</a></strong><strong></strong>此模具主要负责产品的外型。翻砂模分上模与下模。把一定湿度的沙加入模具中并压实,模具上面所设计的造型就印在砂子上了。把砂芯装入后再把印出来的上下模合在一起就可以等待浇铸了。砂芯模,砂芯模也叫油芯模。顾名思义砂芯模就是制作砂芯的一种模具。在铸造过程中若没有砂芯,那么我们得到的是外型像阀体的一坨实心铜。有了砂芯,我们就可以把内部多余的铜去掉,同时空出来作为水的流道(水路)或者放置阀芯等。我们看到水龙头内表面较粗糙,且成颗粒状分布,这就是砂芯所留下的踪迹?/span> </p> <p> <span>         <img src="/uploads/image/20190325/20190325113650_5495.jpg" alt="宁波翻砂模具? width="510" height="354" title="宁波翻砂模具? align="" /><br /> </span> </p> <span>      <strong><a href="www.vspsouthbay.com" target="_blank">翻砂模具</a></strong><strong><a href="www.vspsouthbay.com" target="_blank">优点</a>:</strong></span><span>水龙头产品翻砂的主要的优点模具便宜,投入设备简单。产品外型变化多,后续机加工简单,用铜量少,成本低?/span><span>翻砂缺点:</span><span>由于模具采用砂作为成型材料,宜造成掉砂,所以只适用精度不高,粗大的零件?/span><span><strong><a href="www.vspsouthbay.com" target="_blank">翻砂工艺</a></strong>易受空气湿度温度等环境因素影响造成产品质量不达标?/span><br /> <span>翻砂产品质地疏松,砂眼,脱锌,气孔,杂质,壁部厚度不统一?nbsp;  所以翻砂的水龙头产生开裂,漏水,电镀砂眼也就没什么大惊小怪的?/span><span>水龙?strong><a href="www.vspsouthbay.com" target="_blank">翻砂工艺</a></strong>不但环境污染大,同时又对生产员工健康造成危害。所以这种工艺已渐渐被淘汰?/span><br /> <span>      品质控制,</span><span>为了减少<strong><a href="www.vspsouthbay.com" target="_blank">翻砂水龙?/a></strong>内部开裂、气孔、砂眼等导致的漏水问题,提高出厂合格率,降低生产成本。有些厂家会在阀体内灌入胶水,倒出多余部分再烘干固化,就像在水龙头阀体的内壁表面搪了一层“釉”?/span><br /> <span>不过,不足之处在于实际使用中,水龙头阀体经常处于冷热水交替环境,这层“釉”与阀体属于两种不同的材料,其膨胀系数不一样,随着时间的推移,这层“釉”与阀体的内壁就慢慢开始剥离开了。使用寿命会比平常水龙头差很多?/span><span>另外,有些胶水中含苯等化学物质较高,每天水流从中流过,对人体健康会产生不利影响,比水龙头本身含铅更严重?/span></p> </div> <div class="newArtiNext mt10"><div>上一?<a href="67.html">重力铸?-水龙头阀体铸造工艺之?/a></div> <div>下一?<a href="65.html">模具制造厂加工中常见几个问题,火热收藏?/a></div> </div> <div class="tag">相关标签?a href='/key.aspx?k=%c4%fe%b2%a8%b7%ad%c9%b0%c4%a3%be%df%c9%fa%b2%fa%b3%a7%bc%d2'>宁波翻砂模具生产厂家</a>,<a href='/key.aspx?k=%c4%fe%b2%a8%b7%ad%c9%b0%c4%a3%be%df%c9%e8%bc%c6'>宁波翻砂模具设计</a>,<a href='/key.aspx?k=%c4%fe%b2%a8%b7%ad%c9%b0%c4%a3%be%df%b3%a7%bc%d2'>宁波翻砂模具厂家</a>,</div> <div class="crumb mt15"> <span class="fl font_w fs18">相关新闻<b class="fs14 fn font_i ml5">RELATED NEWS</b></span> </div> <div class="insNews clearfix pt10 fs14 font_w"> <ul> <li><a rel="nofollow" href="http://www.vspsouthbay.com/news/66.html">水龙头阀体之铸造工?---宁波翻砂模具?/a><span>2019-03-25</span></li> </ul> </div> <div class="clearfix"></div> <div class="crumb mt15"> <span class="fl font_w fs18">相关产品<b class="fs14 fn font_i ml5">RELATED PRODUCT</b></span> </div> <div class="inproCon clearfix fs16 font_w tac"> <ul> </ul> </div> </div> </div> </div> </div> <div class="foot font_w"> <div class="wfixed"> <div class="ftCon clearfix"> <div class="ftLogo fl"><img src="/template/NEST700014/images/ftLogo.png" /></div> <div class="fl con"> <div class="ftNav clearfix"> <ul> <li><a rel="nofollow" href="http://www.vspsouthbay.com/">首页</a></li> <li><a rel="nofollow" href="http://www.vspsouthbay.com/about/">走进我们</a></li> <li><a rel="nofollow" href="http://www.vspsouthbay.com/news/">新闻资讯</a></li> <li><a rel="nofollow" href="http://www.vspsouthbay.com/supply/">产品中心</a></li> <li><a rel="nofollow" href="http://www.vspsouthbay.com/contact/">联系我们</a></li> <li><a href="http://www.vspsouthbay.com/sitemap.html">网站地图</a></li> <li><a href="/sitemap.xml">XML</a></li> <li><a rel="nofollow" href="http://www.vspsouthbay.com#">返回顶部</a></li> </ul> </div> <div class="bottom"> <p>Copyright© www.vspsouthbay.com(<a rel="nofollow" title="复制链接" href="http://www.vspsouthbay.comjavascript:copyURL();" target="_parent">复制链接</a>) 宁波镇海正鹏模具?/p> <p>铸造模具厂哪家好?供应订做多少钱?压铸铝生产厂家怎么样?诚信公司专业提供铝铸造厂家、铸铝件厂家、压铸铝模具厂、铝铸造厂等服务,欢迎来电咨询?/p> <p> 热门城市推广: <b class="ml15"> <a href="/city_index.aspx?city=zhejiang" title="浙江" target="_blank" rel="nofollow">浙江</a> <a href="/city_index.aspx?city=ningbo" title="宁波" target="_blank" rel="nofollow">宁波</a> <a href="/city_index.aspx?city=shanghai" title="上海" target="_blank" rel="nofollow">上海</a> <a href="/city_index.aspx?city=jiangsu" title="江苏" target="_blank" rel="nofollow">江苏</a> <a href="/city_index.aspx?city=jiaxing" title="嘉兴" target="_blank" rel="nofollow">嘉兴</a> <a href="/city_index.aspx?city=shaoxing" title="绍兴" target="_blank" rel="nofollow">绍兴</a> <a href="/city_index.aspx?city=fenghua" title="奉化" target="_blank" rel="nofollow">奉化</a> <a href="/city_index.aspx?city=jinhua" title="金华" target="_blank" rel="nofollow">金华</a> <a href="/city_index.aspx?city=yiwu" title="义乌" target="_blank" rel="nofollow">义乌</a> <a href="/city_index.aspx?city=beilun" title="北仑" target="_blank" rel="nofollow">北仑</a></b></p> <div style="width:330px;display:inline-block;"> <b class="cnzz fl"><script type="text/javascript">var cnzz_protocol = (("https:" == document.location.protocol) ? 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