Nanosilicon dioxide modified paste type releasing agent for valve casting

A technology of nano-silica and mold release agent, which is applied in the direction of casting molding equipment, molds, mold components, etc., can solve the problems of affecting the quality of valve body blanks, increasing production input costs, short service life, etc., and achieve mold release Good effect, long service life, easy to use

Inactive Publication Date: 2015-11-04
HEXIAN KEJIA VALVE CASTING
View PDF10 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The valve body release agent currently used has the characteristics of poor release effect and short service li

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

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0020] Example 1

[0021] A nano-silica modified paste mold release agent for valve body casting, which is made of the following mass parts of raw materials:

[0022] 70kg of methyl silicone oil, 12kg of nano silica, 15kg of calcium carbonate, 8kg of lard, 6kg of gypsum powder, 5kg of sugar cane wax, 4kg of rosin acid, 3kg of graphite powder, 3kg of alkyl naphthalene sulfonate, 2kg of concentrated nitric acid, methyl ethyl Base ketone 10kg, ethanol 20kg, water 50kg;

[0023] The preparation method is as follows:

[0024] (1) Disperse nano-silica in ethanol first, soak for 1-2h, then add methyl silicone oil dissolved in methyl ethyl ketone, mix well, then add concentrated nitric acid, heat up to 50-60℃ and keep for 20- 30min, then sonicate for 15-20min at an ultrasonic frequency of 22kHz and a power of 50W to obtain modified methyl silicone oil;

[0025] (2) Dry the gypsum powder at 70-80℃ for 8-10h, and then calcinate it at 350-400℃ for 1-3h, then add it to a ball mill, and add calciu...

Example Embodiment

[0029] Example 2

[0030] A nano-silica modified paste mold release agent for valve body casting, which is made of the following mass parts of raw materials:

[0031] Methyl silicone oil 75kg, nano silica 13kg, calcium carbonate 16kg, lard 9kg, gypsum powder 8kg, sugar cane wax 6kg, rosin acid 5kg, graphite powder 4kg, alkyl naphthalene sulfonate 3kg, concentrated nitric acid 2kg, methyl ethyl Base ketone 11kg, ethanol 25kg, water 55kg.

[0032] The preparation method of the release agent of this embodiment is the same as that of embodiment 1.

Example Embodiment

[0033] Example 3

[0034] A nano-silica modified paste mold release agent for valve body casting, which is made of the following mass parts of raw materials:

[0035] 80kg of methyl silicone oil, 15kg of nano silica, 18kg of calcium carbonate, 11kg of lard, 10kg of gypsum powder, 8kg of sugar cane wax, 7kg of rosin acid, 5kg of graphite powder, 4kg of alkyl naphthalene sulfonate, 4kg of concentrated nitric acid, methyl ethyl Base ketone 12kg, ethanol 30kg, water 60kg.

[0036] The preparation method of the release agent of this embodiment is the same as that of embodiment 1.

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
Login to view more

Abstract

The invention discloses a nanosilicon dioxide modified paste type releasing agent for valve casting and relates to the technical field of releasing agent production. The nanosilicon dioxide modified paste type releasing agent comprises, by mass, 70-80 parts of methylsilicone oil, 12-15 parts of nanosilicon dioxide, 15-18 parts of calcium carbonate, 8-11 parts of lard oil, 6-10 parts of gypsum powder, 5-8 parts of sugarcane wax, 4-7 parts of abietic acid, 3-5 parts of graphite powder, 3-4 parts of alkyl naphthalene sulfonate, 2-4 parts of concentrated nitric acid, 10-12 parts of methyl ethyl ketone, 20-30 parts of ethyl alcohol and 50-60 parts of water. The prepared releasing agent is good in releasing effect, and releasing can be achieved after a valve is fully cooled and shaped, the dimensional precision and the surface quality of the valve body cannot be affected, and service life is long.

Description

Technical field: [0001] The invention relates to the technical field of release agent production, in particular to a nano silicon dioxide modified paste release agent for valve body casting. Background technique: [0002] The valve body is a major part of the valve. There are different mechanical manufacturing methods according to the pressure level, such as casting and forging. Generally, the valve body of the medium and low pressure specifications is usually produced by the casting process. Casting is one of the basic processes of the modern device manufacturing industry. It is a process in which metals are melted into liquids that meet certain requirements and poured into molds, cooled and solidified, and cleaned to obtain castings with predetermined shapes, sizes and properties. Because the casting blank is almost shaped, it achieves the purpose of free machining or a small amount of machining, which reduces the cost and reduces the production time to a certain extent. ...

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
IPC IPC(8): B22C3/00
Inventor 黎宏
Owner HEXIAN KEJIA VALVE CASTING
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products