Overview
Reaction sand, also known as foundry sand, is a critical material in metal casting and mold-making industries. It is composed of high-purity silica or other refractory materials, processed to achieve specific grain sizes and thermal properties. Its primary role is to create molds and cores that can withstand the high temperatures of molten metal while maintaining dimensional stability. The quality of reaction sand directly impacts the surface finish and accuracy of cast metal parts.
Physical and Chemical Properties
Reaction sand exhibits high thermal stability, typically resisting temperatures up to 1,600°C (2,912°F). This property prevents the sand from melting or degrading during metal casting processes. The material's grain size distribution affects its permeability and binding characteristics. Finer grains provide better surface finish but may reduce permeability, while coarser grains offer improved gas venting but rougher casting surfaces.
Main Applications
The primary use of reaction sand is in foundry operations for creating molds and cores in sand casting processes. It's particularly valuable for ferrous metal castings like iron and steel. Beyond traditional casting, specialized grades are used in investment casting shells and as a refractory material in furnace linings. Some formulations are engineered for specific alloys or casting techniques requiring unique thermal or chemical resistance.
Safety and Storage
When handling reaction sand, respiratory protection is recommended due to potential silica dust exposure. Proper ventilation systems should be in place in processing areas. Storage requires protection from moisture, as damp sand can affect binding properties and mold strength. Bulk storage should be in covered areas or silos with controlled humidity to maintain material quality.
B2B Procurement Guide
Industrial buyers should specify required grain size distribution (AFS number), clay content, and thermal stability parameters. Testing certificates for refractory properties are essential for quality assurance. Consider transportation costs carefully, as sand is heavy and bulky. Many foundries establish long-term contracts with nearby suppliers to minimize logistics expenses while ensuring consistent material quality.
Related Manufacturers
- 主营：防水卷材、防水涂料
- 主营：石英晶圆片、高温高压窗口片、蓝宝石晶圆片、光催化反应器、砂芯、反应釜、石英器皿、密度计、石英烧瓶、螺旋管、比色皿、投料杯、半导体治具、石英坩埚、激光保护镜片、镀膜片、激光腔体、锥形瓶、蒸馏瓶、圆底烧瓶、研磨板、压条、UV镀膜片、烧杯、酶标板
- 主营：链运机、提升机、催化剂纳化焙烧、皮带输送机、湿电除尘器、脉冲除尘器、焙烧回转窑、单筒烘干机、钼精粉焙烧回转窑、焊接滚轮架、管道内对口器、多通道烘干机、管道外对口器、埋刮板输送机、钼铁冶炼生产线、烟气脱硫、螺旋输送机、Z型提升机
- 主营：除铁器、电磁除铁器、电磁干粉除铁器、石英砂专用除铁器、永磁管道除铁器、电磁干粉除铁机、电磁浆料除铁器、锂电正负极材料除铁、锂电池材料除铁、强磁除铁器、粉末除铁器、浆料除铁、正极材料除铁设备、永磁除铁器、磁选机、粉料除铁
- 主营：PPH储罐、PP储罐、净化塔、石英砂反应釜、换热器、吸收器、真空机组、pp风机、pp搅拌罐、PPH搅拌罐、PP真空罐、PP抽滤桶、离子交换柱
- 主营：岩片、染色岩片、蛭石、石英砂、云母、雨花石、染色云母、机制炭、烧烤炭、白云石、石子、五彩石
- 主营：火山石、火山岩、火山石板、硅藻土、石英砂、氧化钙、竹炭、活性炭、铁粉、松树皮、灌浆料、萤石、云母、陶粒、膨润土、硫自养、火山石粉、重晶石粉、蛭石、硫酸钡、果木炭粉
- 主营：氧化铁颜料、空心玻璃微珠、儿童娱乐沙、玻璃砂、金刚砂、金属砂、石英砂、莫来砂、油田压裂支撑剂、玻璃轻石、高岭土、白云石、凹凸棒土、火山石、喜马拉雅盐、矿物纤维、硅酸铝纤维、矿渣粉、生物质燃烧颗粒、膨润土、重晶石、彩石子、水晶石系列、远红外系列
- 主营：碳酸钙、轻质碳酸钙、火山石、金刚砂、石英砂、玄武岩砂、白砂、彩砂、蛭石粉、蛭石、氧化钙粉、高钙粉、火山岩、生石灰、雨花石、岩片、石英粉、云母、氧化钙、重钙粉、蛭石板、页岩片、鹅卵石
- 主营：火山石、火山岩、火山石板材、火山石粉、石英砂、铁粉、硅藻土、松树皮、氧化钙、陶粒、云母、灌浆料、竹炭、活性炭、萤石、重晶石粉、果木炭粉、硫酸钡、蛭石、氧化镁
- 主营：树脂水洗石、火山石、沸石、火山石粉、沸石粉、石英粉、水镁石粉、叶蜡石粉、硅灰粉、硅灰石粉、炭黑、鹅卵石、透闪石粉、云母、膨润土、硅微粉、大块火山石
- 主营：贝壳粉、过滤水、托玛琳、高分子反应砂、火山石、塑料pvc、汗蒸房、陶瓷粉、轻钙粉、水性涂料、造纸涂料、陶瓷玻璃、陶瓷涂料、美甲超白、打磨去锈、多肉种植、陶瓷胚料、烧高岭土、研磨材料、净水滤料、耐火材料、稳定水质、鱼池过滤、白色纳米、吸附甲醛、复合肥料
- 主营：铝矾土、线圈胶泥、感应电炉炉衬、石英砂、酸性炉衬材料、中性炉衬材料、捣打料、干振料、加热炉浇灌料、硅质打炉料、中间包可塑料、可塑快速修补料、中频炉炉衬料、高岭土、透热炉打结料、橡胶颗粒、氢氧化钙、机制木炭、膨润土、绿泥白泥修补料、火山石板材、氧化钙、凹凸棒土粉、沸石粉沸石颗粒
- 主营：麦饭石粉、沸石粉、玻璃珠、烧结彩砂、网红砂、鹅卵石、彩色石子、稻壳粉、贝壳彩片
- 主营：高分子反应砂、石英发售、橡胶塑料轻钙