Unlock instant, AI-driven research and patent intelligence for your innovation.

Application of strontium-silicon inoculant in silicon-molybdenum spheroidal graphite cast ion

A nodular cast iron and inoculant technology, which is applied in the application field of strontium silicon inoculant in silicon molybdenum nodular cast iron, can solve the problems of no discussion on performance impact

Active Publication Date: 2015-07-08
RIYUE HEAVY IND
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the use of strontium-containing inoculants in silicon-molybdenum ductile iron has not been reported, and compared with 75SiFe inoculant, the influence on the performance of silicon-molybdenum ductile iron has not been discussed.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Application of strontium-silicon inoculant in silicon-molybdenum spheroidal graphite cast ion
  • Application of strontium-silicon inoculant in silicon-molybdenum spheroidal graphite cast ion
  • Application of strontium-silicon inoculant in silicon-molybdenum spheroidal graphite cast ion

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0018] Take the cast gas intake shell as an example, the material grade is GGG-SiMo4.05, the rough weight of a gas intake shell is 15Kg, and the pouring weight is 20Kg. There are 10 sand boxes in total, and each sand box has 2 castings, plus additional For 3 Y25 test blocks, the total amount of molten iron required is 430Kg. Q10 Pig iron, steel scrap, and returned iron are added to the intermediate frequency induction furnace according to the percentage ratio of 60%, 14%, and 26%. After the furnace material is melted, the temperature is raised to 1442°C, and the spectral sample is taken for testing. If the value of some elements in the testing report is not correct If it meets the requirements of the control range, adjust the composition, then continue to heat up to 1472°C, turn off the furnace switch, and let the molten iron stand for about 2 minutes before starting to tap the iron. When the molten iron in the ladle reaches about two-thirds of the total amount of molten iron ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
particle sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses application of a strontium-silicon inoculant in preparation of silicon-molybdenum spheroidal graphite cast ion, and particularly discloses application of strontium-silicon inoculant in preparation of GGG-SiMo4.05 silicon-molybdenum spheroidal graphite cast ion. According to the invention, the strontium-silicon inoculant is firstly applied to silicon-molybdenum spheroidal graphite cast ion molding so as to improve the mechanical performance; furthermore, the strontium-silicon inoculant is used for special mark, namely GGG-SiMo4.05 silicon-molybdenum spheroidal graphite cast ion, so that the mechanical performances can be obviously improved, for example, the tensile strength, the elongation and the like can be obviously improved.

Description

technical field [0001] The invention relates to the technical field of casting, in particular to the application of a strontium-silicon inoculant in silicon-molybdenum ductile iron. Background technique [0002] At present, when the applicant produces GGG-SiMo4.05 molybdenum silicon ductile iron castings, the mechanical properties are always unqualified, specifically the tensile strength and elongation are unqualified. After continuous adjustments to the ratio of furnace charge, the change of nodulizer types, and composition adjustments, the problem of unqualified mechanical properties still exists. [0003] Inoculation is an important link in the production of ductile iron, and the selection of inoculants has always been valued by people. Strontium-silicon inoculants are generally used for inoculation of gray cast iron molten iron, because strontium in ferrosilicon inoculants containing strontium has a strong graphitization ability, and does not increase the number of eute...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C22C33/08C22C37/04C22C37/10
Inventor 刘建东郑燕华宋贤发傅明康
Owner RIYUE HEAVY IND