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

A hammerhead used for a hammer crusher

A hammer crusher and hammer head technology, applied in the direction of grain processing, etc., can solve the problems of cylindrical pins and bolt cotter pins that are easily damaged, and achieve the effects of reducing labor intensity, increasing strength, and reducing waste

Active Publication Date: 2014-10-29
ANHUI SANFANG NEW MATERIAL TECH CO LTD
View PDF3 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the actual use of this technical solution, cylindrical pins, bolts, and cotter pins are easily damaged, and this technical solution needs to be improved

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

Embodiment 1

[0022] A hammer head for a hammer crusher, the components and their weight percentages are: C: 1.3%, Si: 0.68%, Mn: 19%, Ni: 0.05%, Mo: 0.25%, Cr: 5.5%, Re: 1.05%, V: 1.35%, P: 0.02%, S: 0.01%; the balance is Fe.

[0023] A method for producing a hammer head for a hammer crusher, comprising the following steps:

[0024] (1) Smelting: add scrap steel and pig iron for smelting, and the components after smelting must meet the requirements, and the melting temperature is: 1570°C;

[0025] (2) add Re to carry out metamorphic treatment: divide into three times, add the Re of total amount 13% for the first time, particle size 1.8mm; Add the Re of total amount 24% when 46% molten iron is poured into ladle for the second time, particle size 0.6mm; the third time is added when the hanging bag is poured, the particle size is 1.8mm;

[0026] (3) Pouring: the temperature is 1475°C;

[0027] (4) cooling to 32°C;

[0028] (5) Quenching treatment: when the temperature is 310°C, keep warm ...

Embodiment 2

[0031] A hammer head for a hammer crusher, the components and their weight percentages are: C: 1.25%, Si: 0.75%, Mn: 18.5%, Ni: 0.045%, Mo: 0.35%, Cr: 4.5%, Re: 1.15%, V: 1.22%, P: 0.01%, S: 0.02%; the balance is Fe.

[0032] A method for producing a hammer head for a hammer crusher, comprising the following steps:

[0033] (1) Smelting: adding scrap steel and pig iron for smelting, the components after smelting must meet the requirements, and the melting temperature is: 1565°C;

[0034] (2) add Re to carry out metamorphic treatment: divide and carry out three times, add the Re of total amount 12.5% ​​for the first time, particle size 2.2mm; Add the Re of total amount 23% when 48% molten iron is poured into ladle for the second time, particle size 0.7mm; the third time is added when the bag is poured, the particle size is 1.6mm;

[0035] (3) Pouring: the temperature is 1478°C;

[0036] (4) cooling to 31°C;

[0037] (5) Quenching treatment: when the temperature is 315°C, ke...

Embodiment 3

[0040] A hammer head for a hammer crusher, the components and their weight percentages are: C: 1.2%, Si: 0.8%, Mn: 18%, Ni: 0.06%, Mo: 0.2%, Cr: 6%, Re: 1.0%, V: 1.4%, P: 0.02%, S: 0.01%; the balance is Fe.

[0041] A method for producing a hammer head for a hammer crusher, comprising the following steps:

[0042] (1) Smelting: adding scrap steel and pig iron for smelting, the components after smelting must meet the requirements, and the melting temperature is: 1580°C;

[0043] (2) Add Re to carry out metamorphic treatment: carry out in three times, add the Re of total amount 12% for the first time, particle size 2.5mm; Add the Re of total amount 25% when 45% molten iron is poured into ladle for the second time, particle size 0.5mm; the third time is added when the hanging bag is poured, the particle size is 2mm;

[0044] (3) Pouring: the temperature is 1460°C;

[0045] (4) cooling to 35°C;

[0046] (5) Quenching treatment: when the temperature is 300°C, keep warm for 2 ho...

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 hammerhead used for a hammer crusher is disclosed. The hammerhead comprises following components by weight: 1.2-1.4% of C, 0.6-0.8% of Si, 18-20% of Mn, 0.04-0.06% of Ni, 0.2-0.4% of Mo, 4-6% of Cr, 1.0-1.2% of Re, 1.2-1.4% of V, not more than 0.02% of P and not more than 0.02% of S, with the balance being Fe. According to the hammerhead, strength and hardness of the hammerhead are enhanced by improving a formula and by a reasonable thermal treatment process. Compared with high-manganese steel hammerheads in the prior art, the strength of the hammerhead provided by the invention is increased by 20-30%, the service lifetime is prolonged by 1.6-1.8 times, the cost, waste, and the number of times for changing hammerheads are reduced, and the labor intensity of workers is reduced.

Description

technical field [0001] The invention relates to the technical field of hammer heads, in particular to a hammer head for a hammer crusher. Background technique [0002] The main working part of the hammer crusher is the rotor with the hammer. The rotor consists of a main shaft, discs, pins and hammers. The motor drives the rotor to rotate at high speed in the crushing chamber. The hammer head is the main wearable part, and the quality of the hammer head directly affects the crushing efficiency of the crusher. During the working period of the hammer head, in addition to being impacted, it is also impacted by the material. If it is used repeatedly for a long time, the working surface of the hammer head will be damaged and the surface shape will change. At present, most of the hammer heads of domestic hammer crushers are made of high manganese steel. The material is fed into the machine from the upper feeding port, and is pulverized by the impact, impact, shearing and grindi...

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): C22C38/58C22C33/04C21D6/00B02C13/28B23P15/00
Inventor 仰明
Owner ANHUI SANFANG NEW MATERIAL TECH CO LTD