CN102814753A - Iron-powder doped ceramic diamond grinding wheel - Google Patents

Abstract

The invention discloses an iron-powder doped ceramic diamond grinding wheel which comprises the following components by weight: 50-60 parts of diamond abrasive, 15-20 parts of brown corundum abrasive, 4-6 parts of phenolic resin powder, 5-8 parts of iron powder, 1-3 parts of naphthyl grains, 1-3 parts of dibutyl sebacate, 1-2 parts of tricresyl phosphate, 4-8 parts of dolomite, 4-8 parts of borax, 2-4 parts of potassium feldspar and 1-3 parts of zinc oxide. Because the binding agents are ceramic materials, the grinding wheel is not easy to deform, has good heat resistance and high abrasion resistance. The various ceramic materials have good binding performance, can prevent the formation of cracks effectively and solves the problems that the existing grinding wheel has poor heat resistance and is easy to deform, the existing binding agents for producing the grinding wheel have poor performance, and the abrasives are easy to fall. Because the iron powder and other metal powders are added, the grinding wheel disclosed by the invention has high heat conducting performance, low grinding temperature and higher hardness and strength and can dissipate heat quickly, the cracks formed due to rigid grinding are reduced, the grinding efficiency and the service life of the grinding wheel are far higher and longer than those of the traditional grinding wheel, and the comprehensive benefit is improved by more than 50%.

Description

A kind of ceramic skive that is mixed with iron powder

Technical field

The invention discloses a kind of ceramic skive that is mixed with iron powder and preparation method thereof, belong to the grinding tool processing technique field.

Background technology

Emery wheel is topmost one type of grinding tool in the grinding.Emery wheel is in abrasive material, to add bond, the porous body of processing through pressed compact, drying and roasting.Emery wheel is a kind of that consumption is maximum in the grinding tool, use face is the widest, rotates at a high speed during use, can roughly grind the cylindrical of metal or non-metal workpiece, interior circle, plane and various profiles etc., half correct grinding and correct grinding and fluting and cut-out etc.Material in order to bonded abrasive in the emery wheel is claimed bond, intensity, impact resistance, hear resistance and the resistance to corrosion of the performance decision emery wheel of bond.At present bond mainly is divided into four kinds on pottery, resin, rubber and metal, wherein vitrified bond hear resistance, good corrosion resistance, the porosity big, be prone to keep profile, be applicable to v < the various plunge grindings of 35m/>s, roll flute wheel, thread grinding etc.

The ceramic bond diamond emery wheel is to bond abrasive particle with the good vitrified bond of proportioning, forms through pressed compact, drying, roasting and finishing, the grinding tool that has a lot of pores, cuts with abrasive particle.The ceramic bond diamond emery wheel has high strength, and heat resistance is good, cuts sharply, and grinding efficiency is high, is difficult for heating in the grinding process and stops up, and thermal expansion amount is little, with the control machining accuracy.Compare with resin bond wheel, he has solved the low life-span of resin diamond grinding wheel for it, and grinding efficiency is low, the problem of this mutability in grinding process of grinding tool.Therefore the ceramic bond diamond emery wheel is at diamond, industrial ceramics, diamond compact; Dimond synneusis; Diamond cutter, cubic boron nitride is in the grinding of some special materials such as high hard brittle material such as carbide alloy; Have more and more remarkable advantages, good prospect is arranged in the development of diamond abrasive tool.Being considered to the high-performance grinding tool of high speed, efficient, high-precision, low grinding cost, low environment pollution, having application more and more widely, is the focus that recent countries in the world grinding tool is is competitively researched and developed.

Summary of the invention

The purpose of this invention is to provide a kind of ceramic skive that is mixed with iron powder,, improve its performance to increase the intensity and the hardness of ceramic bond diamond emery wheel.

For reaching above purpose, the technical scheme that the present invention adopts is following:

A kind of ceramic skive that is mixed with iron powder is characterized in that, it is to be processed by the raw material of following weight portion:

Diamond abrasive 50-60, brown corundum abrasive 15-20, phenol-formaldehyde resin powder 4-6, iron powder 5-8, naphthalene grain 1-3, dibutyl sebacate 1-3, tricresyl phosphate 1-2, dolomite 4-8, borax 4-8, potassic feldspar 2-4, zinc oxide 1-3.

One of each prescription in the weight portion of described ceramic each raw material components of skive that is mixed with iron powder such as the following table:

Raw material	Diamond abrasive	Brown corundum abrasive	The scrap iron powder	Iron powder	The naphthalene grain	Dibutyl sebacate	Tricresyl phosphate	Dolomite	Borax	Potassic feldspar	Zinc oxide
												Prescription 1	53	17	4	6	1.5	1.6	1.2	4	4	2	1
Prescription 2	55	18	5	8	1.9	2.2	1.4	5	6	3	2
												Prescription 3	58	20	7	9	2.4	2.6	1.7	8	7	4	2
Prescription 4	60	20	8	9	2.8	3.0	1.8	8	8	4	3

Described dolomite, borax, potassic feldspar, zinc oxide are through 2600-3000 ℃ of high melt, and cooling back ball milling becomes nano ceramic powder, can become vitrified bond.

A kind of preparation method who is mixed with the ceramic skive of iron powder is characterized in that, may further comprise the steps:

(1) by above-mentioned prescription each component is packed in the batch mixer, mixed 1-2 hour, abundant mixing;

(2) batch mixing is poured in the mould, again mould is put into press compacting, heating mould simultaneously; The precharge 1-2 of elder generation MPa, 300-350 ℃ of the upper and lower plate heating-up temperature of press, time 2-4 minute; Boost to the 11-12 MPa then; Pressurize 3-5 minute, then treatment temperature is risen to 720-750 ℃, be incubated 2-3 hour; Naturally cool to 40-450 ℃ again, be warming up to 1210-1250 ℃ by per minute 3-5 ℃ again, be incubated 6-7 hour;

(3) be cooled to normal temperature after hot pressing finishes, take out the emery wheel workpiece and get final product.

The present invention has following beneficial effect:

1, bond adopts ceramic material among the present invention, can make emery wheel not yielding, and good heat resistance has very high wearability, has solved existing emery wheel poor heat resistance, yielding problem; Various ceramic material adhesive properties are good, can prevent crackle effectively, and it is not good to have solved existing emery wheel binding agent performance, the caducous problem of abrasive material.

2, the present invention has added metal dusts such as iron powder; Not only improved the heat conductivility of emery wheel, rapid heat dissipation, grinding temperature is low; And the hardness and the intensity of emery wheel have been increased; Reduce the crackle that the rigidity grinding forms, its grinding efficiency and service life, comprehensive benefit improved more than 50% considerably beyond traditional emery wheel.

The specific embodiment

Followingly the present invention is further described through specific embodiment.

Embodiment 1

The ceramic skive that is mixed with iron powder is processed by the raw material of following weight portion: diamond abrasive 53, brown corundum abrasive 17, phenol-formaldehyde resin powder 4, iron powder 6, naphthalene grain 1.5, dibutyl sebacate 1.6, tricresyl phosphate 1.2, dolomite 4, borax 4, potassic feldspar 2, zinc oxide 1.Described dolomite, borax, potassic feldspar, zinc oxide are through 2724 ℃ of high melts, and cooling back ball milling becomes nano ceramic powder, can become vitrified bond.

The preparation method who is mixed with the ceramic skive of iron powder may further comprise the steps:

(1) by above-mentioned prescription each component is packed in the batch mixer, mixed 1 hour, abundant mixing;

(2) batch mixing is poured in the mould, again mould is put into the press compacting, while heating mould, first precharge 1 MPa; 310 ℃ of the upper and lower plate heating-up temperatures of press, times 2 clock boosts to 11 MPas then; Pressurize 3 minutes rises to 725 ℃ with treatment temperature then, is incubated 2 hours; Naturally cool to 40-450 ℃ again, be warming up to 1210-1250 ℃ by per minute 3-5 ℃ again, be incubated 6-7 hour;

(3) be cooled to normal temperature after hot pressing finishes, take out the emery wheel workpiece and get final product.

Embodiment 2

The ceramic skive that is mixed with iron powder is processed by the raw material of following weight portion: diamond abrasive 55, brown corundum abrasive 18, phenol-formaldehyde resin powder 5, iron powder 8, naphthalene grain 1.9, dibutyl sebacate 2.2, tricresyl phosphate 1.4, dolomite 5, borax 6, potassic feldspar 3, zinc oxide 2.Described dolomite, borax, potassic feldspar, zinc oxide are through 2813 ℃ of high melts, and cooling back ball milling becomes nano ceramic powder, can become vitrified bond.

The preparation method who is mixed with the ceramic skive of iron powder may further comprise the steps:

(1) by above-mentioned prescription each component is packed in the batch mixer, mixed 1 hour, abundant mixing;

(2) batch mixing is poured in the mould, again mould is put into the press compacting, while heating mould, first precharge 1 MPa; 320 ℃ of the upper and lower plate heating-up temperatures of press, times 2 clock boosts to 11 MPas then; Pressurize 3 minutes rises to 735 ℃ with treatment temperature then, is incubated 2 hours; Naturally cool to 40-450 ℃ again, be warming up to 1210-1250 ℃ by per minute 3-5 ℃ again, be incubated 6-7 hour;

(3) be cooled to normal temperature after hot pressing finishes, take out the emery wheel workpiece and get final product.

Embodiment 3

The ceramic skive that is mixed with iron powder is processed by the raw material of following weight portion: diamond abrasive 58, brown corundum abrasive 20, phenol-formaldehyde resin powder 7, iron powder 9, naphthalene grain 2.4, dibutyl sebacate 2.6, tricresyl phosphate 1.7, dolomite 8, borax 7, potassic feldspar 4, zinc oxide 2.Described dolomite, borax, potassic feldspar, zinc oxide are through 2895 ℃ of high melts, and cooling back ball milling becomes nano ceramic powder, can become vitrified bond.

The preparation method who is mixed with the ceramic skive of iron powder may further comprise the steps:

(1) by above-mentioned prescription each component is packed in the batch mixer, mixed 2 hours, abundant mixing;

(2) batch mixing is poured in the mould, again mould is put into the press compacting, while heating mould, first precharge 2 MPas; 335 ℃ of the upper and lower plate heating-up temperatures of press, times 3 clock boosts to 12 MPas then; Pressurize 4 minutes rises to 740 ℃ with treatment temperature then, is incubated 3 hours; Naturally cool to 40-450 ℃ again, be warming up to 1210-1250 ℃ by per minute 3-5 ℃ again, be incubated 6-7 hour;

(3) be cooled to normal temperature after hot pressing finishes, take out the emery wheel workpiece and get final product.

Embodiment 4

The ceramic skive that is mixed with iron powder is processed by the raw material of following weight portion: diamond abrasive 60, brown corundum abrasive 20, phenol-formaldehyde resin powder 8, iron powder 9, naphthalene grain 2.8, dibutyl sebacate 3.0, tricresyl phosphate 1.8, dolomite 8, borax 8, potassic feldspar 4, zinc oxide 3.Described dolomite, borax, potassic feldspar, zinc oxide are through 2938 ℃ of high melts, and cooling back ball milling becomes nano ceramic powder, can become vitrified bond.

The preparation method who is mixed with the ceramic skive of iron powder may further comprise the steps:

(1) by above-mentioned prescription each component is packed in the batch mixer, mixed 2 hours, abundant mixing;

(2) batch mixing is poured in the mould, again mould is put into the press compacting, while heating mould, first precharge 2 MPas; 350 ℃ of the upper and lower plate heating-up temperatures of press, times 4 clock boosts to 12 MPas then; Pressurize 5 minutes rises to 750 ℃ with treatment temperature then, is incubated 3 hours; Naturally cool to 40-450 ℃ again, be warming up to 1210-1250 ℃ by per minute 3-5 ℃ again, be incubated 6-7 hour;

(3) be cooled to normal temperature after hot pressing finishes, take out the emery wheel workpiece and get final product.

Claims (3)

1. a ceramic skive that is mixed with iron powder is characterized in that, it is to be processed by the raw material of following weight portion:

Diamond abrasive 50-60, brown corundum abrasive 15-20, phenol-formaldehyde resin powder 4-6, iron powder 5-8, naphthalene grain 1-3, dibutyl sebacate 1-3, tricresyl phosphate 1-2, dolomite 4-8, borax 4-8, potassic feldspar 2-4, zinc oxide 1-3.

2. the ceramic skive that is mixed with iron powder according to claim 1 is characterized in that, one of each prescription in the weight portion of described ceramic each raw material components of skive that is mixed with iron powder such as the following table:

Raw material Diamond abrasive Brown corundum abrasive The scrap iron powder Iron powder The naphthalene grain Dibutyl sebacate Tricresyl phosphate Dolomite Borax Potassic feldspar Zinc oxide Prescription 1 53 17 4 6 1.5 1.6 1.2 4 4 2 1 Prescription 2 55 18 5 8 1.9 2.2 1.4 5 6 3 2 Prescription 3 58 20 7 9 2.4 2.6 1.7 8 7 4 2 Prescription 4 60 20 8 9 2.8 3.0 1.8 8 8 4 3

The ceramic skive that is mixed with iron powder according to claim 1 and 2; It is characterized in that; Described dolomite, borax, potassic feldspar, zinc oxide are through 2600-3000 ℃ of high melt, and cooling back ball milling becomes nano ceramic powder, can become vitrified bond.

3. the preparation method of a ceramic skive that is mixed with iron powder according to claim 1 or claim 2 is characterized in that, may further comprise the steps:

(1) by above-mentioned prescription each component is packed in the batch mixer, mixed 1-2 hour, abundant mixing;

(2) batch mixing is poured in the mould, again mould is put into press compacting, heating mould simultaneously; The precharge 1-2 of elder generation MPa, 300-350 ℃ of the upper and lower plate heating-up temperature of press, time 2-4 minute; Boost to the 11-12 MPa then; Pressurize 3-5 minute, then treatment temperature is risen to 720-750 ℃, be incubated 2-3 hour; Naturally cool to 40-450 ℃ again, be warming up to 1210-1250 ℃ by per minute 3-5 ℃ again, be incubated 6-7 hour;

(3) be cooled to normal temperature after hot pressing finishes, take out the emery wheel workpiece and get final product.