Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Gas pipe alloy of domestic gas stove, preparation method of gas pipe alloy and gas pipe

A technology for gas pipes and gas stoves, applied in the direction of pipes/pipe joints/fittings, pipes, rigid pipes, etc., can solve the problems of easy cavitation, poor wear resistance, shortened service life of gas pipes, etc. Good wear resistance and the effect of grain size refinement

Active Publication Date: 2019-03-12
宁波正直科技有限公司
View PDF24 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the surface of the existing ferrochrome alloy has poor wear resistance and loose oxide film on the surface, and the surface is prone to cavitation under the friction of high-speed flow of gas, resulting in continuous oxidation and frictional peeling of the inner surface of the gas pipe made of ferrochrome alloy, and the service life of the gas pipe is shortened. short

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
  • Gas pipe alloy of domestic gas stove, preparation method of gas pipe alloy and gas pipe
  • Gas pipe alloy of domestic gas stove, preparation method of gas pipe alloy and gas pipe
  • Gas pipe alloy of domestic gas stove, preparation method of gas pipe alloy and gas pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] A household gas stove gas pipe alloy, its composition by mass fraction is:

[0052] C: 1.95-2.01wt%, Si: 0.17-0.20wt%, Mn: 0.30-0.60wt%, P: 0.001-0.01wt%, S: 0.001-0.012wt%, Cr: 0.20-0.25wt%, V: 0.56-0.62wt%, Al: 5.5-5.8wt%, Pb: 0.12-0.17wt%, Ti: 0.13-0.18wt%, Co: 0.12-0.17wt%, Y: 0.2-0.25wt%, Fe: 90.61- 91.01wt%, other alloy metal elements: 0.5-0.67wt%, and the rest are unavoidable impurities.

[0053] The addition method of Al is Al 4 C 3 . The Si addition method includes SiC, and Si in SiC accounts for 85-90% of the Si mass content in the obtained alloy. Unavoidable impurities include [H], and the mass fraction of [H] is 0.0002-0.00025wt%.

[0054] The preparation method of the above-mentioned domestic gas stove gas pipe alloy comprises the following steps:

[0055] S1: Put molten iron and steel scrap into the converter, carry out conventional top-bottom combined blowing to control blowing oxygen pressure 0.8-0.82MPa, when the tapping temperature is 1620-1640°C...

Embodiment 2

[0081] A gas pipe, based on Example 1A, the difference is that in S4, ferrosilicon alloy is used instead of SiC, and the Si composition is adjusted to be qualified.

Embodiment 3

[0083]A gas pipe, based on Example 1A, the difference is that cobalt-iron alloy is not added in the preparation method of household gas stove gas pipe alloy, titanium-iron alloy is replaced by pig iron, and the original Ti and Co components are replaced by Fe content.

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a gas pipe of a gas stove and discloses a gas pipe alloy of a domestic gas stove, a preparation method of the gas pipe alloy and a gas pipe. The gas pipe alloy of the domesticgas stove comprises, by mass, 1.95wt%-2.01wt% of C, 0.17wt%-0.20wt% of Si, 0.30wt%-0.60wt% of Mn, 0.001wt%-0.01wt% of P, 0.001wt%-0.012wt% of S, 0.20wt%-0.25wt% of Cr, 0.56wt%-0.62wt% of V, 5.5wt%-5.8wt% of Al, 90.61wt%-91.01wt% of Fe, 0.5wt%-0.67wt% of other alloy metal elements and the balance inevitable impurities. According to the adding manner of Al, Al4C3 is adopted, various alloys are usedfor smelting, and Al4C3 is added for refining; a surface oxidization film is compact, wear resistance is good, and oxidization resistance and cavitation resistance of the surface of the alloy are improved; and the gas pipe is made through the gas pipe alloy of the domestic gas stove, oxidization resistance and cavitation resistance are good, and the service life is long.

Description

technical field [0001] The invention relates to a gas pipe for a gas stove, in particular to a gas pipe alloy for a household gas stove, a preparation method thereof and a gas pipe. Background technique [0002] Gas stove is a common household stove, the common one is atmospheric combustion gas stove, or also known as premixed combustion gas stove, the gas is first mixed with air and then transported to the gas stove burner through the gas pipe for combustion. However, due to the safety considerations of the gas stove, the amount of temporary gas in the pipe is reduced to reduce the risk of tempering. The gas pipe in the existing gas stove has a small diameter, a high pressure inside the pipe, and a large flow rate. The gas pipe is coated or coated Therefore, the anti-oxidation of the inner side of the existing gas pipe depends on the anti-oxidation and anti-corrosion properties of the gas pipe material itself, such as ferrochrome alloy. [0003] However, the surface of the...

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 Applications(China)
IPC IPC(8): C22C33/06C22C33/08C21C1/08C21C5/35C22C37/06C22C37/10C22C38/02C22C38/04C22C38/06C22C38/24C22C38/28C22C38/30C22C38/60F16L9/02
CPCC21C1/08C21C5/35C22C33/06C22C33/08C22C37/06C22C37/10C22C38/002C22C38/005C22C38/02C22C38/04C22C38/06C22C38/24C22C38/28C22C38/30C22C38/60F16L9/02Y02P10/20
Inventor 马建明
Owner 宁波正直科技有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com