CN1453087A

CN1453087A - Lathe tool for roll calibre and its manufacture and repair method

Info

Publication number: CN1453087A
Application number: CN 02116927
Authority: CN
Inventors: 王树敏
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-04-26
Filing date: 2002-04-26
Publication date: 2003-11-05

Abstract

The lathe tool for roller calibre has hard alloy tool blade adhered with inorganic adhesive to the carbon steel tool bar. During its manufacture and repair, the carbon steel tool bar is machined and cleaned to form slot and the hard alloy tool blade is adhered to the carbon steel tool bar. The lathe tool with wear resistant hard alloy tool blade has long service life and is suitable for lathing 70Mn cast steel roller, modular cast iron roller, chill hardened cast iron roller, semi-steel roller, high NiCr roller, etc.

Description

A kind of lathe tool for roll calibre and manufacturing, restorative procedure

Technical field

The present invention relates to the cutter of a kind of metal processing usefulness and manufacturing, restorative procedure, especially relate to a kind of lathe tool for roll calibre of special roller lathe and manufacturing, restorative procedure.

Background technology

At present, lathe tool for roll calibre generally adopts knife bar and high speed steel W 18Cr4V alloy blade welding or knife bar and high-speed steel alloy blade borax and ferromanganese powder high temperature bonding.The pass lathe tool is not wide at width, and as shown in Figure 1, the alloy blade wider width uses the alloy amount more.Chinese patent notification number 1007966, on July 31 1991 day for announcing, name is called the method for production that discloses the compound form tool of a kind of high-speed steel in the preparation method of the compound form tool of a kind of high-speed steel.Be to make the high-speed steel composite plate by rolling or blast complex method, through steps such as plasma cutting, machined, aligning, heat treatments, make high-speed steel composite plate cutter again with high-speed steel and straight carbon steel.The high-speed steel roll pass lathe tool hardness of making of above-mentioned several method is low, wear no resistance, the cutting ability of high-speed steel tool is not as hard alloy cutter, and stock-removing efficiency is lower, the cutting high-hardness roller, as high Minvar roll, ferrosteel roll, then high-speed steel tool is difficult to be competent at.Therefore, be necessary that breaker roll pass lathe tool improves.

Summary of the invention

Technical problem to be solved by this invention is, easily wearing and tearing and alloy blade wide use steel alloy many problem low at high-speed steel roll pass lathe tool hardness, a kind of hardness height is provided, lathe tool for roll calibre with high-wearing feature, this lathe tool for roll calibre adopts the high carbide chip of hardness, the carbide chip width is narrower, the pass lathe tool is wide at width, uses steel alloy less, can economize nearly half steel alloy when the assurance wear surface is constant.For this reason, the present invention's method that also will provide a kind of manufacturing, repair this lathe tool for roll calibre.

Technical scheme of the present invention is; A kind of lathe tool for roll calibre, between carbon steel knife bar and carbide chip, inorganic glue is arranged, the carbon steel knife bar is by carbon steel manufacturing or worn out lathe tool for roll calibre, carbide chip width 15-35mm, the pass lathe tool is wide at width, carbide chip thickness is 5mm or more than the mm, carbon steel knife bar cutter groove is 0.25-0.3mm with the single face gap that cooperates of carbide chip, carbon steel knife bar machined cutter groove depth is 5mm, and carbon steel knife bar and carbide chip cooperation place roughness are below 3.

The method of the lathe tool for roll calibre of a kind of manufacturing, reparation, this method is as follows:

1) the lip-deep oxide of carbon steel knife bar is cleaned down, clean bonding position of carbon steel knife bar and carbide chip respectively with acetone;

2) bonding employing cupric oxide inorganic adhesive is bonding: 1 milliliter of phosphoric acid liquid adds 4-4.5 gram cupric oxide powder and joins glue, on copper coin, modulate and fully be in harmonious proportion, mix in the pasty state, when the binding agent wire drawing reaches 3～5mm with spatula, good glue is equal with rubber flap with being in harmonious proportion, promptly spread upon on two bonding planes repeatedly, uniformly, adhesive thickness is 0.3-0.4mm, and the carbon steel knife bar is kept flat, again blade is bumped in the groove, and press blade with light finger flicking one, and make its adhesive linkage more even, remove cull;

3) be bonded in 20 operations and be advisable for 20 ℃, avoid in operation more than 25 ℃;

4) the whole operation process was finished in 10 minutes;

5) placed 2.5 hours under the room temperature, send into baking oven and kept 1 hour for interior 50 ℃, be warming up to 90 ℃ of constant temperature again 2 hours.

Lathe tool for roll calibre tool of the present invention is compared advantage with existing lathe tool for roll calibre and is, reduces the alloy blade consumption, and high hardness is arranged, and has high wearability, and especially red hardness is good, long service life.Improve 3～5 times than high-speed steel roll pass lathe tool its comprehensive service life, and this lathe tool for roll calibre is applicable to turning 70Mn cast steel roll, spheroidal graphite roll, chilled cast iron roll, ferrosteel roll, high-ni-cr roll, surfacing roll etc.

Description of drawings

Fig. 1 is existing lathe tool for roll calibre front view;

Fig. 2 is the front view of lathe tool for roll calibre of the present invention;

Fig. 3 is the cutaway view of lathe tool for roll calibre of the present invention

Fig. 4 is a carbon steel knife bar cutaway view;

Fig. 5 is carbide chip figure.

The specific embodiment

The invention will be further described below in conjunction with accompanying drawing.

As Fig. 2, Fig. 3, Fig. 4, shown in Figure 5, select steel carbon steel knife bar 1, with inorganic glue 3 bonding carbide chips 2, carbide chip 2 thickness are 10mm, carbide chip width 25mm, the pass lathe tool is wide at width, carbon steel knife bar cutter groove is 0.25mm with the single face gap that cooperates of carbide chip, carbon steel knife bar cutter groove depth 5mm, and carbon steel knife bar and carbide chip cooperation place roughness are below 3, carbon steel knife bar 1 is steel plate or worn out lathe tool for roll calibre, for bonding reparation of crossing the lathe tool for roll calibre of carbide chip, tear glue open as need, lathe tool for roll calibre can be immersed among the ammoniacal liquor, by knocking and the pressure effect, destroy glue-line.

Manufacturing of the present invention, the method for repairing this lathe tool for roll calibre are as follows:

1) the lip-deep oxide of carbon steel knife bar is cleaned down, clean bonding position of carbon knife bar and carbide chip respectively with acetone;

2) bonding employing cupric oxide inorganic adhesive is bonding: 1 milliliter of phosphoric acid liquid adds 4 gram cupric oxide powders and joins glue, on copper coin, modulate and fully be in harmonious proportion, mix in the pasty state, when the binding agent wire drawing reaches 4mm with spatula, good glue is equal with rubber flap with being in harmonious proportion, promptly spread upon on two bonding planes repeatedly, uniformly, adhesive thickness is 0.3mm, and the carbon steel knife bar is kept flat, again blade is bumped in the groove, and press blade with light finger flicking one, and make its adhesive linkage more even, remove cull;

3) be bonded in 20 ℃ of operations;

4) the whole operation process was finished in 5 minutes;

Claims

1, a kind of lathe tool for roll calibre is made up of carbon steel knife bar and alloy blade, it is characterized in that: between carbon steel knife bar (1) and carbide chip (2), inorganic glue (3) is arranged, carbon steel knife bar (1) is that carbon steel is made or the width of worn out lathe tool for roll calibre, carbide chip is 15-35mm, and the pass lathe tool is wide at width.

2, according to the described lathe tool for roll calibre of claim 1, it is characterized in that: the single face fit clearance of carbon steel knife bar cutter groove and carbide chip is 0.25-0.3mm, carbon steel knife bar cutter groove depth 5mm or more than the 5mm, carbon steel knife bar and carbide chip cooperation place roughness are below 3.

3, lathe tool for roll calibre according to claim 1 is characterized in that: the thickness of carbide chip is 5mm or more than the 5mm.

4 one kinds of manufacturings, the method for repairing the described rolling mill roll pass of claim 1 lathe tool is characterized in that this method is as follows:

1) the lip-deep oxide of carbon steel knife bar (1) cleans down, and cleans bonding position of carbon steel knife bar and carbide chip (2) respectively with acetone;

3) be bonded in operation and be advisable for 20 ℃, avoid in operation more than 25 ℃;

4) the whole operation process was finished in 10 minutes;

5) placed 2-3 hour under the room temperature, send into baking oven and kept 1 hour for interior 50 ℃, be warming up to 80-100 ℃ of constant temperature again 2 hours.