Cold continuous rolling method of brass wires

A technology of cold continuous rolling and brass, applied in the field of cold continuous rolling process of binary brass wire rod, can solve the problems of reduced production efficiency, non-dense structure of brass casting billet, long production process flow, etc., so as to improve production efficiency , the effect of shortening the process flow and reducing the production cost

Active Publication Date: 2015-05-06
JINTIAN COPPER GROUP CORP NINGBO
View PDF7 Cites 14 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The production process is long, the equipment is relatively simple, and the brass billet produced is not dense in as-cast structure and has poor plasticity. The limited amount makes the structure of the brass slab less compact, and the compactness of the structure cannot be improved by recrystallization annealing process
On the other hand, waste miscellaneous copper is often added to the ingredients of binary brass, and some high-melting point substances

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
  • Cold continuous rolling method of brass wires
  • Cold continuous rolling method of brass wires
  • Cold continuous rolling method of brass wires

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0023] Example 1: Under the same processing rate, the brass up-drawing continuous casting Φ12 bar billet was processed to a Φ7.7 wire billet by the stretching method and the cold rolling method respectively.

[0024] (1) Ingredients: according to the bright line 40wt%, brass corner material 30wt%, zinc ingot and inevitable impurities 30wt%, the total amount of impurities is not more than 0.4wt% except Ni;

[0025] (2) Melting: Put the bright wire, brass corner stock, and zinc ingot into the induction electric furnace in batches for smelting. The smelting temperature is 1030~1080℃, and the temperature is kept after all the metals are melted;

[0026] (3) Upward continuous casting: The copper water is continuously drawn upward from the holding furnace by the mold, the rod billet size is Φ12mm, and the traction speed is 2.0m / min;

[0027] (4) Cold rolling: The brass top rod billet is continuously rolled to Φ7.7mm through a multi-stand rolling mill, the number of stands is 10, the rolling ...

Example Embodiment

[0041] Example 2: Under the condition of the same processing rate, the brass up-drawing continuous casting Φ12 up-drawing continuous casting rod billet is processed to the Φ7.2 wire billet by the stretching method and the cold rolling method respectively.

[0042] (1) Ingredients: according to the bright line 40wt%, brass corner material 30wt%, zinc ingot and inevitable impurities 30wt%, the total amount of impurities is not more than 0.4wt% except Ni;

[0043] (2) Melting: Put the bright wire, brass corner stock, and zinc ingot into the induction electric furnace in batches for smelting. The smelting temperature is 1030~1080℃, and the temperature is kept after all the metals are melted;

[0044] (3) Upward continuous casting: The copper water is continuously drawn upward from the holding furnace by the mold, the rod billet size is Φ12mm, and the traction speed is 2.0m / min;

[0045] (4) Cold rolling: The brass top rod billet is continuously rolled to Φ7.2mm through a multi-stand rollin...

Example Embodiment

[0059] Example 3: Under the condition of the same processing rate, the Φ8 up-drawing continuous casting rod blank is processed to the Φ5 wire blank by the stretching method and the cold rolling method respectively.

[0060] (1) Ingredients: According to the bright line 20-40wt%, brass corner material 30-50wt%, zinc as the balance and inevitable impurities, the total amount of impurities is not more than 0.4wt% except Ni;

[0061] (2) Melting: Put the bright wire, brass corner stock, and zinc ingot into the induction electric furnace in batches for smelting. The smelting temperature is 1030~1080℃, and the temperature is kept after all the metals are melted;

[0062] (3) Upward continuous casting: Copper water is continuously drawn upward from the holding furnace by the crystallizer, the billet size is Φ8mm, and the pulling speed is 2.0m / min;

[0063] (4) Cold rolling: The brass top rod billet is continuously rolled to Φ5mm through a multi-stand rolling mill, the number of stands is 8, t...

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

No PUM Login to view more

Abstract

A cold continuous rolling method of brass wires comprises the following steps: burdening, carrying out upward guiding continuous rolling to form brass rod blanks, carrying out cold rolling, annealing, pickling, drawing, annealing, pickling, carrying out finished product finish drawing, carrying out finished product examination, packaging, and warehousing, wherein the cold rolling step makes the total compression ratio in a range of 1.5-4.0, the diameter phi of the rod blanks is 8-15mm, the diameter of the cold rolled wires is 4-8mm, and the out of roundness of the diameter of the wires is smaller than 0.2mm. The cold rolling step is arranged to eliminate pores and tiny cracks in the brass rod blanks, substantially improves the density of the structure of the blanks, and avoids the wire breaking phenomenon of the brass wires in the medium wire drawing, small wire drawing and other drawing processes.

Description

technical field [0001] The patent of the present invention relates to a continuous cold rolling process for brass wires, in particular to a continuous cold rolling process for binary brass wires. Background technique [0002] Binary brass wire is composed of copper and zinc, has good plasticity, and can be used in the manufacture of mechanical parts. Its traditional production process is mainly batching→smelting→upward continuous casting→multi-pass joint drawing, annealing, pickling→finish drawing→finished product inspection, packaging, storage, among which multi-pass joint drawing mainly includes large Drawing → annealing → pickling → medium drawing → annealing → pickling → small drawing → annealing → pickling. The production process is long, the equipment is relatively simple, and the brass billet produced is not dense in as-cast structure and has poor plasticity. The limited amount makes the structure of the brass slab less compact, and the compactness of the structure ...

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): C22F1/08
CPCC22F1/08
Inventor 叶东皇裘桂群巢国辉
Owner JINTIAN COPPER GROUP CORP NINGBO
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

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap