阅读说明：本技术 一种珩磨油石粗磨方法 (Honing oilstone rough grinding method ) 是由 王勇 于 2021-06-16 设计创作，主要内容包括：本发明公开了一种珩磨油石粗磨方法,包括以下步骤：(一)原料配比：按重量比分别准备锡原料、银原料、铜原料、钴原料、铁原料、钨原料、硫原料和硅原料,并将准备好的原料放置到收纳箱中收集,(二)原料混合：将配比完成后的金属原料倒入球磨设备中进行充分混合,得到混合粉料,(三)模压成型：将得到的混合粉料置于模具中模压成型,得到油石模具,(四)冷压烧结：将得到的油石模具放置到冷压烧制机上进行压制,压制成型后拆开模具得到油石预料。该珩磨油石粗磨方法,通过改进原料配比,使得降低整体的生产成本,从而有利于促进珩磨的发展,让珩磨技术能够在国内大多数行业中普及,使得整体的适用性更加广泛。(The invention discloses a honing oilstone rough grinding method which comprises the following steps: the raw material ratio is as follows: preparing a tin raw material, a silver raw material, a copper raw material, a cobalt raw material, an iron raw material, a tungsten raw material, a sulfur raw material and a silicon raw material according to the weight ratio, placing the prepared raw materials into a containing box, and collecting the raw materials, (II) mixing the raw materials: pouring the metal raw materials after the proportioning is finished into ball milling equipment for fully mixing to obtain mixed powder, (III) compression molding: placing the obtained mixed powder in a mould for compression molding to obtain an oilstone mould, (IV) cold-pressing and sintering: and placing the obtained oilstone mould on a cold pressing firing machine for pressing, and disassembling the mould after pressing forming to obtain the oilstone expected material. According to the honing oilstone rough grinding method, the overall production cost is reduced by improving the raw material ratio, so that the development of honing is facilitated, the honing technology can be popularized in most domestic industries, and the overall applicability is wider.)

1. The honing oilstone is characterized by comprising a tin raw material, a silver raw material, a copper raw material, a cobalt raw material, an iron raw material, a tungsten raw material, a sulfur raw material and a silicon raw material in a weight ratio of 14.3: 2.8: 33.2: 45.6: 1.3: 0.73: 0.27: 0.35.

2. A honing oilstone rough grinding method is characterized by comprising the following steps:

the raw material ratio is as follows: preparing a tin raw material, a silver raw material, a copper raw material, a cobalt raw material, an iron raw material, a tungsten raw material, a sulfur raw material and a silicon raw material according to the weight ratio, and placing the prepared raw materials into a containing box for collection.

(II) mixing raw materials: and pouring the metal raw materials collected in the containing box into ball milling equipment in sequence for fully mixing to obtain mixed powder.

(III) compression molding: and placing the obtained mixed powder into a mold for compression molding to obtain the oilstone mold.

(IV) cold-pressing and sintering: and placing the obtained oilstone mould on a cold pressing firing machine for pressing, and disassembling the mould after pressing forming to obtain the oilstone expected material.

(V) finishing verification: and performing equal channel corner extrusion on the obtained oilstone anticipated material, controlling the outer die angle phi of an extrusion die to be 20 degrees, the inner die angle phi of the extrusion die to be 90 degrees, controlling the extrusion temperature to be 200-300 degrees, controlling the extrusion speed to be 1-1.5mm/s, controlling the extrusion times to be 1-2 times, performing finishing processing on the oilstone anticipated material after transfer, and obtaining the honing oilstone after subsequent verification.

(VI) correcting the gauge circle: and placing the obtained honing oilstone on an external grinding machine, and finishing and rounding by using a silicon carbide grinding wheel to finish the installation work of the honing oilstone.

(seventh) coarse grinding: and (3) placing a workpiece to be machined on a grinding machine, and starting the honing machine tool to perform rough grinding.

3. The rough grinding method of honing oilstones as claimed in claim 2, wherein: in the step (II), in the process of mixing the raw materials, the wetting agent is added according to 0.005-0.01 of the total weight of the raw materials, and the diamond micropowder is added according to 0.05-0.1 of the total weight of the raw materials.

4. The rough grinding method of honing oilstones as claimed in claim 2, wherein: in the step (II), in the process of mixing the raw materials, the rotating speed of the ball mill is controlled at 400-450 revolutions, and the running time of the ball mill is controlled at 20-25 h.

5. The rough grinding method of honing oilstones as claimed in claim 2, wherein: and (III) in the compression molding process, the mold is a stainless steel metal mold.

6. The rough grinding method of honing oilstones as claimed in claim 2, wherein: and in the step (IV), in the process of cold-pressing and sintering the oilstone mold, the pressure is controlled to be 400-500 MPa.

7. The rough grinding method of honing oilstones as claimed in claim 2, wherein: and step six, in the working process of correcting the gauge circle, the rotating speed of the silicon carbide grinding wheel is set to be 15-20m/s, the rotating speed of the grinding head is set to be 1-4m/min, the depth of feed is controlled to be 0.02-0.04 mm/stroke, and cooling liquid is poured into the silicon carbide grinding wheel at the same time.

8. The rough grinding method of honing oilstones as claimed in claim 2, wherein: in the step (VII), in the process of carrying out rough grinding on the workpiece, the cutting allowance of rough grinding energy is 0.05-0.15mm, and the surface roughness of the workpiece after rough grinding can be controlled to be 0.6-0.8 μm.

Technical Field

The invention relates to the technical field of honing, in particular to a rough grinding method for honing oilstones.

Background

Honing is an efficient processing method for achieving high precision, high surface quality and long service life of the processing surface of a workpiece, can effectively improve the dimensional precision and the shape precision and reduce the Ra value, but can not improve the position precision of a hole and other surfaces.

The honing technology cannot be popularized in most of domestic industries due to high production cost of the honing rough grinding method in the market nowadays, and meanwhile, the rough grinding work cutting allowance through the honing technology is large, and the surface of a workpiece after rough grinding is too rough, so that the honing rough grinding method for conveniently solving the problems is provided.

Disclosure of Invention

The invention aims to provide a honing oilstone rough grinding method, so as to solve the problems that the honing technology cannot be popularized in most domestic industries due to high production cost of the honing oilstone rough grinding method in the market at present, the rough grinding work cutting allowance is large, and the surface of a workpiece after rough grinding is too rough.

In order to achieve the purpose, the invention provides the following technical scheme: a honing oilstone is prepared from a tin raw material, a silver raw material, a copper raw material, a cobalt raw material, an iron raw material, a tungsten raw material, a sulfur raw material and a silicon raw material in a weight ratio of 14.3: 2.8: 33.2: 45.6: 1.3: 0.73: 0.27: 0.35.

A honing oilstone rough grinding method comprises the following steps:

the raw material ratio is as follows: preparing a tin raw material, a silver raw material, a copper raw material, a cobalt raw material, an iron raw material, a tungsten raw material, a sulfur raw material and a silicon raw material according to the weight ratio, and placing the prepared raw materials into a containing box for collection.

(II) mixing raw materials: and pouring the metal raw materials collected in the containing box into ball milling equipment in sequence for fully mixing to obtain mixed powder.

(III) compression molding: and placing the obtained mixed powder into a mold for compression molding to obtain the oilstone mold.

(IV) cold-pressing and sintering: and placing the obtained oilstone mould on a cold pressing firing machine for pressing, and disassembling the mould after pressing forming to obtain the oilstone expected material.

(V) finishing verification: and performing equal channel corner extrusion on the obtained oilstone anticipated material, controlling the outer die angle phi of an extrusion die to be 20 degrees, the inner die angle phi of the extrusion die to be 90 degrees, controlling the extrusion temperature to be 200-300 degrees, controlling the extrusion speed to be 1-1.5mm/s, controlling the extrusion times to be 1-2 times, performing finishing processing on the oilstone anticipated material after transfer, and obtaining the honing oilstone after subsequent verification.

(VI) correcting the gauge circle: and placing the obtained honing oilstone on an external grinding machine, and finishing and rounding by using a silicon carbide grinding wheel to finish the installation work of the honing oilstone.

(seventh) coarse grinding: and (3) placing a workpiece to be machined on a grinding machine, and starting the honing machine tool to perform rough grinding.

Preferably, in the step (two), in the process of mixing the raw materials, the wetting agent is poured according to 0.005-00.1 of the total weight of the raw materials, and the diamond micropowder is added according to 0.05-0.1 of the total weight of the raw materials.

Preferably, in the step (two), during the mixing treatment of the raw materials, the rotation speed of the ball mill is controlled at 400-450 revolutions, and the running time of the ball mill is controlled at 20-25 h.

Preferably, in the step (three), during the compression molding, the mold is a stainless steel metal mold.

Preferably, in the step (IV), the pressure is controlled to be 400-500MPa in the cold-pressing sintering process of the oilstone mold.

Preferably, in the step (six), in the working process of circle correction, the rotational speed of the silicon carbide grinding wheel is set to be 15-20m/s, the rotational speed of the grinding head is set to be 1-4m/min, the depth of feed is controlled to be 0.02-0.04 mm/stroke, and cooling liquid is poured in at the same time.

Preferably, in the step (seven), in the operation of roughly grinding the workpiece, the rough grinding energy cutting allowance is 0.05-0.15mm, and the surface roughness of the workpiece after rough grinding can be controlled to be 0.6-0.8 μm.

Compared with the prior art, the invention has the beneficial effects that: according to the honing oilstone rough grinding method, the overall production cost is reduced by improving the raw material ratio, so that the development of honing is facilitated, the honing technology can be popularized in most domestic industries, and the overall applicability is wider;

(1) in the process of mould pressing and sintering, the metal mould and cold pressing are matched for use, so that the service life of the mould is prolonged, a large amount of oilstones can be produced conveniently, the integral manufacturing cost is further reduced, and the method is worthy of popularization and application.

(2) In the coarse grinding process of the honing oilstone produced by using the formula, the cutting allowance is small, the surface roughness of the workpiece after coarse grinding is low, and the coarse grinding and cutting are avoided from being carried out for many times, so that the working efficiency is increased, and meanwhile, the labor consumption is reduced.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

The first embodiment is as follows:

a honing oilstone is prepared from a tin raw material, a silver raw material, a copper raw material, a cobalt raw material, an iron raw material, a tungsten raw material, a sulfur raw material and a silicon raw material in a weight ratio of 14.3: 2.8: 33.2: 45.6: 1.3: 0.73: 0.27: 0.35.

The honing oilstone rough grinding method introduces the production and the application in detail as follows:

the raw material ratio is as follows: preparing a tin raw material, a silver raw material, a copper raw material, a cobalt raw material, an iron raw material, a tungsten raw material, a sulfur raw material and a silicon raw material according to the weight ratio, and placing the prepared raw materials into a containing box for collection.

(II) mixing raw materials: and pouring the metal raw materials collected in the containing box into ball milling equipment in sequence for fully mixing to obtain mixed powder.

(III) compression molding: and placing the obtained mixed powder into a mold for compression molding to obtain the oilstone mold.

(IV) cold-pressing and sintering: and placing the obtained oilstone mould on a cold pressing firing machine for pressing, and disassembling the mould after pressing forming to obtain the oilstone expected material.

(V) finishing verification: and performing equal channel corner extrusion on the obtained oilstone anticipated material, controlling the outer die angle phi of an extrusion die to be 20 degrees, the inner die angle phi of the extrusion die to be 90 degrees, controlling the extrusion temperature to be 200-300 degrees, controlling the extrusion speed to be 1-1.5mm/s, controlling the extrusion times to be 1-2 times, performing finishing processing on the oilstone anticipated material after transfer, and obtaining the honing oilstone after subsequent verification.

(VI) correcting the gauge circle: and placing the obtained honing oilstone on an external grinding machine, and finishing and rounding by using a silicon carbide grinding wheel to finish the installation work of the honing oilstone.

(seventh) coarse grinding: and (3) placing a workpiece to be machined on a grinding machine, and starting the honing machine tool to perform rough grinding.

And (II) in the process of mixing the raw materials, pouring a wetting agent according to 0.005 of the total weight of the raw materials, and adding diamond micropowder according to 0.05 of the total weight of the raw materials.

And (II) in the process of mixing the raw materials, controlling the rotating speed of the ball mill to be 400 revolutions and controlling the running time of the ball mill to be 20 hours.

And (III) in the compression molding process, the mold is a stainless steel metal mold.

And step four, controlling the pressure to be 400MPa in the process of cold-pressing and sintering the oilstone die.

And step six, in the working process of correcting the gauge circle, the rotating speed of the silicon carbide grinding wheel is set to be 15m/s, the rotating speed of the grinding head is set to be 1m/min, the depth of feed is controlled to be 0.02 mm/stroke, and cooling liquid is poured into the silicon carbide grinding wheel.

And (seventhly) in the process of carrying out rough grinding on the workpiece, the cutting allowance of rough grinding is 0.05mm, and the surface roughness of the workpiece after rough grinding can be controlled to be 0.6 mu m.

Example two:

a honing oilstone is prepared from a tin raw material, a silver raw material, a copper raw material, a cobalt raw material, an iron raw material, a tungsten raw material, a sulfur raw material and a silicon raw material in a weight ratio of 14.3: 2.8: 33.2: 45.6: 1.3: 0.73: 0.27: 0.35.

The honing oilstone rough grinding method introduces the production and the application in detail as follows:

the raw material ratio is as follows: preparing a tin raw material, a silver raw material, a copper raw material, a cobalt raw material, an iron raw material, a tungsten raw material, a sulfur raw material and a silicon raw material according to the weight ratio, and placing the prepared raw materials into a containing box for collection.

(II) mixing raw materials: and pouring the metal raw materials collected in the containing box into ball milling equipment in sequence for fully mixing to obtain mixed powder.

(III) compression molding: and placing the obtained mixed powder into a mold for compression molding to obtain the oilstone mold.

(IV) cold-pressing and sintering: and placing the obtained oilstone mould on a cold pressing firing machine for pressing, and disassembling the mould after pressing forming to obtain the oilstone expected material.

(V) finishing verification: and performing equal channel corner extrusion on the obtained oilstone anticipated material, controlling the outer die angle phi of an extrusion die to be 20 degrees, the inner die angle phi of the extrusion die to be 90 degrees, controlling the extrusion temperature to be 200-300 degrees, controlling the extrusion speed to be 1-1.5mm/s, controlling the extrusion times to be 1-2 times, performing finishing processing on the oilstone anticipated material after transfer, and obtaining the honing oilstone after subsequent verification.

(VI) correcting the gauge circle: and placing the obtained honing oilstone on an external grinding machine, and finishing and rounding by using a silicon carbide grinding wheel to finish the installation work of the honing oilstone.

(seventh) coarse grinding: and (3) placing a workpiece to be machined on a grinding machine, and starting the honing machine tool to perform rough grinding.

And (II) in the process of mixing the raw materials, pouring a wetting agent according to 0.01 of the total weight of the raw materials in proportion, and adding diamond micropowder according to 0.1 of the total weight of the raw materials in proportion.

And (II) in the process of mixing the raw materials, controlling the rotating speed of the ball mill to be 450 revolutions and controlling the running time of the ball mill to be 25 hours.

And (III) in the compression molding process, the mold is a stainless steel metal mold.

And step four, controlling the pressure to be 500MPa in the process of cold-pressing and sintering the oilstone die.

And step (VI) in the working process of correcting the gauge circle, setting the rotating speed of the silicon carbide grinding wheel to be 20m/s, setting the rotating speed of the grinding head to be 4m/min, controlling the depth of feed to be 0.04 mm/stroke, and pouring cooling liquid simultaneously.

And (seventhly) in the process of carrying out rough grinding on the workpiece, the cutting allowance of rough grinding is 0.15mm, and the surface roughness of the workpiece after rough grinding can be controlled to be 0.8 mu m.

It should also be noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in the process, method, article, or apparatus that comprises the element.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.