CN1049376C - 一种铸钢侧架的铸造方法 - Google Patents

一种铸钢侧架的铸造方法 Download PDF

Info

Publication number
CN1049376C
CN1049376C CN97100041A CN97100041A CN1049376C CN 1049376 C CN1049376 C CN 1049376C CN 97100041 A CN97100041 A CN 97100041A CN 97100041 A CN97100041 A CN 97100041A CN 1049376 C CN1049376 C CN 1049376C
Authority
CN
China
Prior art keywords
sand
mixing
cast steel
steel side
uniformly mixing
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
CN97100041A
Other languages
English (en)
Other versions
CN1163805A (zh
Inventor
陈其刚
陈同军
阎贵海
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Qiqihaer Railway Vehicle Group Co ltd
CRRC Qiqihar Rolling Stock Co Ltd
Original Assignee
Qiqihar Rolling Stock Plant
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Qiqihar Rolling Stock Plant filed Critical Qiqihar Rolling Stock Plant
Priority to CN97100041A priority Critical patent/CN1049376C/zh
Publication of CN1163805A publication Critical patent/CN1163805A/zh
Application granted granted Critical
Publication of CN1049376C publication Critical patent/CN1049376C/zh
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Abstract

一种铸钢侧架的铸造方法，新砂和再生砂按比例混匀→固化剂混匀→树脂混匀→造型或制芯→浇注，其特征是：在所述的新砂和再生砂按比例混匀和固化剂混匀之间加入外增塑剂混匀30-32秒和抗氧化剂混匀10-12秒，所述的外增塑剂由三氯化铁、二氯化铁、游离酸、水不溶物组成，所述的抗氧化剂由三氧化二铁和木素粉组成。本发明改善了型、芯砂在高温作用下的退让性，使铸件和裂纹明显减少，扩大了树脂自硬砂的应用范围，使之适合结构复杂、薄壁的侧架生产。

Description

一种铸钢侧架的铸造方法
本发明涉及铁路车辆用转向架，特别是涉及应用树脂自硬砂技术生产铸钢侧架的铸造方法。
目前，铸钢件侧架一直采用水玻璃砂造型，其主要问题是：由于起模后硬化，型腔和坭芯变形，造成铸件尺寸精度低、壁厚超差，铸件超重。
树脂自硬砂造型工艺是近年发展的一项造型、制芯技术，已被广泛地应用到生产铸铁件和结构简单、壁厚50毫米以上的铸钢件的生产。但用于结构复杂、薄壁的铸钢侧架的生产尚无先例。其突出的问题是铸件裂纹，而使产品报废，由于这一问题的存在，限制了树脂自硬砂技术的应用范围。
本发明的目的是提供用树脂自硬砂技术生产铸钢侧架的铸造方法，克服铸件出现裂纹，以提高产品的合格率，扩大树脂自硬砂技术的应用范围。
本发明的目的是这样实现的：
一种铸钢侧架的铸造方法，新砂和再生砂按比例混匀→固化剂混匀→树脂混匀→造型或制芯→浇注，在所述的新砂和再生砂按比例混匀和固化剂混匀之间加入外增塑剂混匀和抗氧化剂混匀，所述的抗氧化剂由三氧化二铁和木素粉组成，所述的三氧化二铁和木素粉按下列配比组成，三氧化二铁≥75％，木素粉≤25％，所述的外增塑剂由下列物质组成，三氯化铁(Fecl3)含量≥45％；二氯化铁(Fecl2)含量≤0.4％；游离酸(Hcl)含量≤0.3％；水不溶物含量≤0.4％。
本发明与现有技术相比具有如下优点：1)由于在型、芯砂中加入了添加剂，从而改善了型、芯砂在高温作用下的退让性，使铸件的裂纹明显减少，由加入前的80％，下降为20％，使树脂自硬砂工艺成功地运用于结构复杂、薄壁的侧架生产，扩大了应用范围；2)与水玻璃砂工艺相比，采用本发明生产的铸钢侧架，表面质量和尺寸精度明显提高，其尺寸精度由CT11-13级提高到CT8-9级，表面粗糙度由50μm提高到20-25μm，铸件重量可减轻8％，使铸钢侧架的内在质量和产品合格率得到进一步提高，完全适应我国铁路重载、提速的生产需求；3)采用连续式混砂机，组成柔性生产线，旧砂90％回用。
下面详细描述本发明的实施例。
1、工艺参数的确定
收缩率：20‰
浇注至落砂时间：4.5小时
浇注温度：1550-1590℃
2、在型、芯砂中加入添加剂
为改善型、芯砂在高温作用下的退让性，在型、芯涛中加入添加剂，即加入外增塑剂和抗氧化剂。
外增塑剂成分及指标如下
三氯化铁(Fecl3)含量≥45％
二氯化铁(Fecl2)含量≤0.4％
游离酸(Hcl)含量≤0.3％
水不溶物含量≤0.4％
密度1.40-1.42g/cm3
PH值1.5-2.5
抗氧化剂由三氧化二铁(Fe2O3)和木素粉组成，其中三氧化二铁≥75％，粒度0.150-0.106mm，木素粉≤25％，全部通过0.600mm的标准筛。
3、使用条件
砂子温度：20-30℃
环境温度≥20℃
起模时间≤40min
混制后型、芯砂可使用时间≤5min
4、型砂的配方(重量比)
天然精选砂(ZGS96-21Q-30)  100％
树脂(ZFS-0.3N-A-0.4)    1.2％(占砂量)
固化剂(GC09)  40-45％(占树脂量)
外增塑剂  20％(占树脂量)
抗氧化剂  1％(占砂量)
5、混制工艺方法
新砂和再生砂按比例加入(混匀10-12秒)→抗氧化剂(混匀10-12秒)→外增塑剂(混匀30-32秒)→固化剂(混匀30-32秒)→树脂(混匀30-32秒)→造型或制芯使用。

Claims (2)

1、一种铸钢侧架的铸造方法，新砂和再生砂按比例混匀→固化剂混匀→树脂混匀→造型或制芯→浇注，其特征是：在所述的新砂和再生砂按比例混匀和固化剂混匀之间加入抗氧化剂混匀和外增塑剂混匀，所述的抗氧化剂由三氧化二铁和木素粉组成，所述的三氧化二铁和木素粉按下列配比组成；三氧化二铁≥75％，木素粉≤25％，所述的外增塑剂由下列物质组成，三氯化铁(Fe-cl3)含量≥45％；二氯化铁(Fecl2)含量≤0.4％；游离酸(Hcl)含量≤0.3％；水不溶物含量≤0.4％。
2、根据权利要求1所述的铸钢侧架的铸造方法，其特征是：所述的抗氧化剂混匀为10-12秒，所述的外增塑剂混匀为30-32秒。
CN97100041A 1997-03-04 1997-03-04 一种铸钢侧架的铸造方法 Expired - Fee Related CN1049376C (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN97100041A CN1049376C (zh) 1997-03-04 1997-03-04 一种铸钢侧架的铸造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN97100041A CN1049376C (zh) 1997-03-04 1997-03-04 一种铸钢侧架的铸造方法

Publications (2)

Publication Number Publication Date
CN1163805A CN1163805A (zh) 1997-11-05
CN1049376C true CN1049376C (zh) 2000-02-16

Family

ID=5164736

Family Applications (1)

Application Number Title Priority Date Filing Date
CN97100041A Expired - Fee Related CN1049376C (zh) 1997-03-04 1997-03-04 一种铸钢侧架的铸造方法

Country Status (1)

Country Link
CN (1) CN1049376C (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9637143B2 (en) 2013-12-30 2017-05-02 Nevis Industries Llc Railcar truck roller bearing adapter pad systems
US9216450B2 (en) 2011-05-17 2015-12-22 Nevis Industries Llc Side frame and bolster for a railway truck and method for manufacturing same
US9233416B2 (en) 2011-05-17 2016-01-12 Nevis Industries Llc Side frame and bolster for a railway truck and method for manufacturing same
US9346098B2 (en) 2011-05-17 2016-05-24 Nevis Industries Llc Side frame and bolster for a railway truck and method for manufacturing same
US10358151B2 (en) 2013-12-30 2019-07-23 Nevis Industries Llc Railcar truck roller bearing adapter-pad systems
US9758181B2 (en) 2013-12-30 2017-09-12 Nevis Industries Llc Railcar truck roller bearing adapter pad systems
CN105436411B (zh) * 2015-12-30 2018-08-17 青岛立准金属有限公司 一种高透气消失模铸造方法

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330674A (en) * 1964-04-06 1967-07-11 Harvest Queen Mill & Elevator Molding composition containing iron oxide and starch
US3470937A (en) * 1965-07-29 1969-10-07 Sulzer Ag Process of protecting castings made of carbon-containing alloys against decarburization at the edges and against surface defects
SU827238A1 (ru) * 1979-06-05 1981-05-07 Всесоюзный Научно-Исследовательский Иконструкторский Институт По Оборудованиюдля Шинной Промышленности Способ изготовлени керамических формдл СТАльНОгО лиТь
SU1468636A1 (ru) * 1987-04-23 1989-03-30 Институт проблем литья АН УССР Смесь дл изготовлени литейных форм и стержней,отверждаема углекислым газом

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3330674A (en) * 1964-04-06 1967-07-11 Harvest Queen Mill & Elevator Molding composition containing iron oxide and starch
US3470937A (en) * 1965-07-29 1969-10-07 Sulzer Ag Process of protecting castings made of carbon-containing alloys against decarburization at the edges and against surface defects
SU827238A1 (ru) * 1979-06-05 1981-05-07 Всесоюзный Научно-Исследовательский Иконструкторский Институт По Оборудованиюдля Шинной Промышленности Способ изготовлени керамических формдл СТАльНОгО лиТь
SU1468636A1 (ru) * 1987-04-23 1989-03-30 Институт проблем литья АН УССР Смесь дл изготовлени литейных форм и стержней,отверждаема углекислым газом

Also Published As

Publication number Publication date
CN1163805A (zh) 1997-11-05

Similar Documents

Publication Publication Date Title
CN1049376C (zh) 一种铸钢侧架的铸造方法
CN101985157B (zh) 一种co2气体硬化的“双相”砂型芯制芯方法
CN203578677U (zh) 砂型铸造的模具
US20020165292A1 (en) Casting sand cores and expansion control methods therefor
DE69422642D1 (de) Zusammensetzung mit wiederverwertetem sand aus der produktion von giessformen und giesskernen, deren herstellungsverfahren, herstellungsverfahren von giessformen und giesskernen
CN1049375C (zh) 一种铸钢摇枕的铸造方法
CN1057981A (zh) 铝合金构件在低压下去除泡沫塑料模型的成型方法
CN1084789A (zh) 铸造用砂模和型芯的生产方法
CN111545708B (zh) 一种覆膜砂壳型铁砂负压铸造工艺
CN112191797A (zh) 一种汽车缸体铸造用型砂配方
CN110153370A (zh) 一种机床脚的树脂砂铸造工艺
CN1130271C (zh) 挤压冒口补缩的铸造方法
CN110860648A (zh) 一种改善铸造砂粒形貌提高砂型强度的铸造工艺方法
CN107649653A (zh) 一种3d打印砂芯的方法
CN102000770A (zh) 壁厚均匀类铸件无模具造型方法
CN1191894C (zh) 酯固化水玻璃型砂混合料及真空转换硬化法
CN201030417Y (zh) 一种曲面金属型连体模板
Li et al. Effect of Pressure on the Feeding Behavior of A 356 Alloy in Low-Pressure Casting
CN110899618A (zh) 一种改善铸造砂粒形貌提高砂型强度的铸造工艺方法
JP2918444B2 (ja) 掻型造型用鋳物砂
CN107790611A (zh) 一种铸钢件用石墨树脂砂及其制备方法
CN1017031B (zh) 搪瓷浴缸铸坯水玻璃复砂造型工艺
CN104841884A (zh) 提高铸件表面质量的工艺
JP2673856B2 (ja) 崩壊性砂中子の製造方法
CN101700559A (zh) 型砂新砂加入工艺

Legal Events

Date Code Title Description
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C06 Publication
PB01 Publication
C14 Grant of patent or utility model
GR01 Patent grant
ASS Succession or assignment of patent right

Owner name: QIQIHAR ORBIT TRANSPORT EQUIPMENT, LIMITED LIABIL

Free format text: FORMER OWNER: CNR QIQIHAR RAILWAY ROLLING STOCK (GROUP) CO. LTD

Effective date: 20071221

C41 Transfer of patent application or patent right or utility model
C56 Change in the name or address of the patentee

Owner name: CNR QIQIHAR RAILWAY ROLLING STOCK (GROUP) CO. LTD

Free format text: FORMER NAME OR ADDRESS: QIQIHAER TRAIN GROUP CO., LTD.

Owner name: QIQIHAER TRAIN GROUP CO., LTD.

Free format text: FORMER NAME OR ADDRESS: QIQIHAR VEHICLE FACTORY

CP03 Change of name, title or address

Address after: No. 10 Zhonghua East Road, Qigihar, Heilongjiang Province, China: 161002

Patentee after: CNR Qiqihar Railway Rolling Stock (Group) Co.,Ltd.

Address before: Postcode, Zhonghua East Road, Qigihar, Heilongjiang: 161002

Patentee before: Qiqihaer Railway Vehicle (Group) Co.,Ltd.

Address after: Postcode, Zhonghua East Road, Qigihar, Heilongjiang: 161002

Patentee after: Qiqihaer Railway Vehicle (Group) Co.,Ltd.

Address before: Postcode, Zhonghua East Road, Qigihar, Heilongjiang: 161002

Patentee before: QIQIHAER ROLLING STOCK PLANT

TR01 Transfer of patent right

Effective date of registration: 20071221

Address after: Heilongjiang city of Qigihar Province, Tiefeng District Factory Road No. 36

Patentee after: QIQIHAR RAILWAY ROLLING STOCK Co.,Ltd.

Address before: No. 10 Zhonghua East Road, Qigihar, Heilongjiang

Patentee before: CNR Qiqihar Railway Rolling Stock (Group) Co.,Ltd.

C17 Cessation of patent right
CF01 Termination of patent right due to non-payment of annual fee

Granted publication date: 20000216

Termination date: 20120304