型砂

将改性水玻璃与粉状混合物G配合使用，型砂800℃的残留强度降至0.28MPa。

When powdered material G is incorporated in the modified silicate , the retained strength of the molding sand at 800 ℃ is reduced down to 0 28 MPa .

型砂中的Na2CO3对铝液流动性的影响

Effect of Na_2CO_3 in Molding Sand on the Fluidity of Liquid Aluminum

PC在铸造行业型砂混辗系统中的应用

Application of PC in Foundry Sand Mixing System

本文分析了型砂配制的工艺，用PC对其进行了控制，获得了良好地控制效果。

This paper analyses the technological process of moulding sand compounding , and con-trolled by PC , then yields good results .

介绍了利用微机与PLC联网控制以实现铸造型砂混制过程的自动化控制。

Automation control of foundry swage mixture process is presented in this paper by means of the network control using PC and PLC .

用CO2法硬化水玻璃砂时，影响再生砂制备的型砂性能的主要因素是残留在砂粒表面的碳酸钠盐。

The study of the hardening characteristics of reclaimed CO2 sodium silicate bonded sand shows that the residual sodium carbonate acetate is the primary affecting factor .

第一次加水后，对型砂紧实率稳定值采用AR模型进行预测，以缩短型砂混制时间。

After the first water addition , we adopt AR model to predict the stable value of sand compactibility to shorten the time mixing the sand .

试验结果表明，在水玻璃中加入磷酸盐、有机物K，提高了型砂的常温强度，降低了高温残强，改善了水玻璃砂的溃散性。

The results of experiments show that phophate , organism K can be improved the ordinary temperature strength and lower the high temperature retained strength of silicates sand mixture , improving its collapsibility .

UPF自硬型砂粘结剂的研究

Studies on no-bake UPF binder for foundry sand

对CO2法硬化的水玻璃砂再生砂而言，造成再生砂制备的型砂性能恶化的主要原因是残留碳酸钠盐类的晶体及其碎片。

For the CO2 hardened regenerated water glass sand , the main cause of performance deterioration of moulding sand prepared from regenerated sand is owing to the crystal and chips of the residual sodium cabon-ate .

原矿经破碎水洗法选矿后，精矿含SiO299.16%，质量达优质型砂。

The primary ore is dressed through crushing and washing , and the concentrate contains SiO_2 99.16 % which is a super quality foundry sand .

新试验方法的特点是采用表面有V形沟槽的圆饼形型砂试件，在激热试验炉中受到自下而上的高温烘烤。

The special feature of the new testing method is that a cake-like sand test piece with V-shape groove on its surface is heated from bottom to top in a new-designed high temperature shock heating furnace .

将这种改性水玻璃存放半年加入砂中，型砂的σ即时、σ24h不但没有降低，反而有明显的提高。

If the modified water glass is stored for half a year , the σ as gassed and σ 24h strength of the modified silicate sand were increased markedly .

确定了聚氧化乙烯改性水玻璃粘结剂的基本组分，测试了有机酯自硬和CO2气硬型砂的常温粘结强度和高温残留强度。

The fundamental ingredients of PEO modified sodium silicate binder are determined , and the bonding strength in room temperature and retained strength in high temperature of ester cured sand and CO2 hardening sand are tested .

FS粉可以取代煤粉作抗粘砂材料，其加入量比煤粉少，可以显著降低型砂的灰分、水分和发气量，提高透气性。FS粉在铸铁湿型砂中的应用研究

FS powder can be used as a substitute for coal dust to prevent metal penetration . An Investigation on Application of FS Flour to Green Moulding Sand for Iron Casting Production

DH-1型型砂水分自动测控系统

DH-1 Type Automatic Measure & Control System for Moisture Content in Molding Sand

从而得出：冲击阀开启初速度是影响升压速度dp1/dt（尤其是刚开始进气时的升压速度）和型砂紧实效果的关键。

The results reveal that a high initial opening speed of the impact valve is the key influence on speed dp_1 / dt of pressure increasing ( especial on initial speed of pressure increasing ) and mold compacting effect .

ZXS-1智能型砂水分计的研制

Development of ZXS-1 Intelligent Molding Sand Moisture Meter

对A30气缸体夹砂废品产生的原因，即型砂性能、铸件结构、浇注速度、浇注系统的布置等方面的要素进行了分析。

Analysis is done to the causes of reject A30 block with sand inclusion , i.e.the elements of molding sand feature ; cast structure , casting speed and arrangement for casting system , etc.

本文研究了PANa树脂作为铸造用型砂粘接剂的工艺参数，并与其它几种气体硬化粘接剂进行了比较。

In this paper , the parameters of PANa resin suited for foundry were researched . The comparison between this resin and some other gas hardening binders was made .

用自制的SHH型型砂高温性能测试仪、GET1智能发气性测定仪对三乙胺树脂砂、呋喃树脂砂、水玻璃砂高温性能进行对比测试；

This paper compares hot temperature properties of TEA resin sand , furan resin sand and sodium silicate sand by SHH molding sand hot temperature property instrument and GET 1 intelligent gas evolution instrument .

对所研制的ZXS1智能型砂水分计的工作原理、技术特性和使用性能进行了详细的叙述。

In this paper , working principle , technical characteristics and operational performance of ZXS1 Intelligent Molding Sand Moisture Meter are described in detail .

经过模拟实验表明：此系统能够在20s内同时完成湿型砂的紧实率、有效粘土含量、含水量、砂温、透气性及综合强度等质量参数的快速检测，为评价湿型砂质量提供了依据。

It is by simulated experiment proved that several greensand quality parameters including compressibility , available clay content , moisture , temperature , permeability and synthetical strength of greensand can be tested simultaneously in 20 second , which provides a good evidence to value the quality of green sand .

粘结剂加入量相同时，型砂强度是普通水玻璃砂的1.5倍，800～1000℃时，型砂残留强度≤0.5MPa。

With the same binder amount , the sand strength is nearly 1.5 times that of general sodium silicate sand , and the retained strength from 800 ℃ to 1000 ℃ is less than 0.5 MPa .

试验发现0.9～1T条件下，型砂的粘结强度升幅最大，效果最好，可提高46%，水玻璃的老化程度影响着磁化处理的效果，存放久的老化水玻璃磁化效果明显。

The results point that the bond strength of foundry sand may be maximum increased by 46 % in magnetic field of 0.9-IT . The aging level of sodium silicate will impact the effects of magnetization . The magnetization result of aged sodium silicate rested for long time is obvious .

湿型砂的控制研究应用湿部化学法控制纸机污染物

Using Wet End Chemical Control Methods to Manage Paper Machine Contaminants

型砂性能检测系统及测试方法的研究

Study on Testing System and Method of Multi-properties for Green Sand

无公害型砂粘结剂性能研究

Studies on the property of moulding sand binder of non-environmental pollution

除尘效率对型砂质量和铸件质量的影响

Influence of Dusting Efficiency on Moulding Sand Quality and Castings Quality

湿型砂造型和制芯过程数值模拟研究进展

Progress of Research on Numerical Simulation of Green Sand Molding Process