CN104372199A - Lead-free environment-friendly silicon brass - Google Patents
Lead-free environment-friendly silicon brass Download PDFInfo
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- CN104372199A CN104372199A CN201410682311.0A CN201410682311A CN104372199A CN 104372199 A CN104372199 A CN 104372199A CN 201410682311 A CN201410682311 A CN 201410682311A CN 104372199 A CN104372199 A CN 104372199A
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Abstract
The invention relates to lead-free environment-friendly silicon brass. The lead-free environment-friendly silicon brass is characterized by comprising the following elements in percentage by weight: 58.0-63.0% of Cu, 31-41.7% of Zn, 0.2-0.7% of Al, 0.1-2.2% of Si, less than or equal to 0.05% of Pb, 0.2-2.0% of graphite and no more than 0.08% of impurities. The lead-free environment-friendly silicon brass has the advantages that firstly low-lead or even lead-free free-cutting brass is realized; secondly, the added Si element and graphite are low in cost, so that production cost of brass is reduced; and thirdly, environment-friendly free-cutting brass has good thermoplasticity, and hot extrusion ratio is more than 80.
Description
Technical field
The present invention relates to a kind of leadless environment-friendly silicon brass.
Background technology
Along with the development of society; the requirement of Environmental protection is more and more higher, and in metal alloy compositions field, some elements polluting the environment and be detrimental to health are progressively replaced; lead is the chemical substance of serious harm human longevity and physical environment, and leaded brass progressively develops to lead-free reflow.
Summary of the invention
For problems of the prior art, the object of the present invention is to provide a kind of technical scheme of leadless environment-friendly silicon brass.
Described a kind of leadless environment-friendly silicon brass, is characterized in that: in brass, the weight percent of each element is respectively: copper: 58.0-63.0%, zinc: 31-41.7%, aluminium: 0.2-0.7%, silicon: 0.1-2.2%, plumbous≤0.05%, graphite 0.2-2.0%, the total amount of impurity is no more than 0.08%.
Described a kind of leadless environment-friendly silicon brass, is characterized in that: in brass, the weight percent of each element is respectively: copper: 59.0-62.0%, zinc: 33-39%, aluminium: 0.3-0.6%, silicon: 0.5-1.8%, plumbous≤0.04%, graphite 0.5-1.5%, the total amount of impurity is no more than 0.08%.
Advantage of the present invention:
1. the low leaded realizing free-cutting brass is even unleaded;
2. added element silicon and the low price of graphite, reduce the production cost of brass;
3. the thermoplasticity of environment-protective free-cutting brass is good, and hot extrusion ratio reaches more than 80.
Embodiment
The present invention will be further described below:
A kind of leadless environment-friendly silicon brass, in brass, the weight percent of each element is respectively: copper: 58.0-63.0%, zinc: 31-41.7%, aluminium: 0.2-0.7%, silicon: 0.1-2.2%, and plumbous≤0.05%, graphite 0.2-2.0%, the total amount of impurity is no more than 0.08%.
A kind of leadless environment-friendly silicon brass, in brass, the weight percent of each element is respectively: copper: 59.0-62.0%, zinc: 33-39%, aluminium: 0.3-0.6%, silicon: 0.5-1.8%, and plumbous≤0.04%, graphite 0.5-1.5%, the total amount of impurity is no more than 0.08%.
Embodiment 1:
Make the leadless environment-friendly silicon brass of 100kg, the weight percent of material is: copper: 63%, zinc: 36%; Aluminium: 0.4%, silicon: 1%, plumbous≤0.05%, graphite 1%, the total amount of impurity is no more than 0.08%.Use sense answers heating by electric cooker, in copper zinc alloy melt, adds Graphite Powder 99, aluminium, silicon master alloy, is finally cast into copper alloy ingot.Obtained brass thermoplasticity is good, and hot extrusion ratio is 97, occurs without cold short phenomenon.
Claims (2)
1. a leadless environment-friendly silicon brass, is characterized in that: in brass, the weight percent of each element is respectively: copper: 58.0-63.0%, zinc: 31-41.7%, aluminium: 0.2-0.7%, silicon: 0.1-2.2%, plumbous≤0.05%, graphite 0.2-2.0%, the total amount of impurity is no more than 0.08%.
2. a kind of leadless environment-friendly silicon brass according to claim 1, it is characterized in that: in brass, the weight percent of each element is respectively: copper: 59.0-62.0%, zinc: 33-39%, aluminium: 0.3-0.6%, silicon: 0.5-1.8%, plumbous≤0.04%, graphite 0.5-1.5%, the total amount of impurity is no more than 0.08%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682311.0A CN104372199A (en) | 2014-11-25 | 2014-11-25 | Lead-free environment-friendly silicon brass |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410682311.0A CN104372199A (en) | 2014-11-25 | 2014-11-25 | Lead-free environment-friendly silicon brass |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104372199A true CN104372199A (en) | 2015-02-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410682311.0A Pending CN104372199A (en) | 2014-11-25 | 2014-11-25 | Lead-free environment-friendly silicon brass |
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| CN (1) | CN104372199A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106435256A (en) * | 2016-10-14 | 2017-02-22 | 西安理工大学 | Easy-to-cut leadless graphite brass and preparing method thereof |
| WO2017071672A1 (en) * | 2015-10-27 | 2017-05-04 | 华南理工大学 | Lead-free easy cutting high strength corrosion resistant silicon brass alloy, and preparation method and application |
| CN107604206A (en) * | 2017-08-15 | 2018-01-19 | 浙江中瀚合金材料有限公司 | A kind of leadless environment-friendly silizin shell of water flowmeter and alloy preparation method |
| CN107604204A (en) * | 2017-08-15 | 2018-01-19 | 浙江中瀚合金材料有限公司 | A kind of antimony bismuth silicon brass alloy material |
-
2014
- 2014-11-25 CN CN201410682311.0A patent/CN104372199A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2017071672A1 (en) * | 2015-10-27 | 2017-05-04 | 华南理工大学 | Lead-free easy cutting high strength corrosion resistant silicon brass alloy, and preparation method and application |
| US10697045B2 (en) | 2015-10-27 | 2020-06-30 | South China University Of Technology | Lead-free easy-cutting high-strength corrosion-resistant silicon-brass alloy and the preparation method and use thereof |
| CN106435256A (en) * | 2016-10-14 | 2017-02-22 | 西安理工大学 | Easy-to-cut leadless graphite brass and preparing method thereof |
| CN106435256B (en) * | 2016-10-14 | 2018-02-13 | 西安理工大学 | A kind of easy-cutting lead-free graphite brass and preparation method thereof |
| CN107604206A (en) * | 2017-08-15 | 2018-01-19 | 浙江中瀚合金材料有限公司 | A kind of leadless environment-friendly silizin shell of water flowmeter and alloy preparation method |
| CN107604204A (en) * | 2017-08-15 | 2018-01-19 | 浙江中瀚合金材料有限公司 | A kind of antimony bismuth silicon brass alloy material |
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Legal Events
| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20150225 |