CN115135825B - Steel boride composition for ring bead ring and process thereof - Google Patents

Steel boride composition for ring bead ring and process thereof Download PDF

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Publication number
CN115135825B
CN115135825B CN202180015906.9A CN202180015906A CN115135825B CN 115135825 B CN115135825 B CN 115135825B CN 202180015906 A CN202180015906 A CN 202180015906A CN 115135825 B CN115135825 B CN 115135825B
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ring
boride
boronizing
layer
activator
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CN115135825A (en
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拉克希曼南·塞尚
苏珊塔·库马尔·帕特奈克
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Lakshmi Tour Coimbatore Pte Ltd
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Lakshmi Tour Coimbatore Pte Ltd
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/02—Pretreatment of the material to be coated
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/06—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases
    • C23C8/08—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using gases only one element being applied
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/40—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions
    • C23C8/42—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using liquids, e.g. salt baths, liquid suspensions only one element being applied
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
    • C23C8/60—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes
    • C23C8/62—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals using solids, e.g. powders, pastes only one element being applied
    • C23C8/68—Boronising
    • C23C8/70—Boronising of ferrous surfaces
    • D—TEXTILES; PAPER
    • D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
    • D01H—SPINNING OR TWISTING
    • D01H7/00—Spinning or twisting arrangements
    • D01H7/02—Spinning or twisting arrangements for imparting permanent twist
    • D01H7/52—Ring-and-traveller arrangements
    • D01H7/60—Rings or travellers; Manufacture thereof not otherwise provided for ; Cleaning means for rings
    • D01H7/602—Rings

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Materials Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Textile Engineering (AREA)
  • Spinning Or Twisting Of Yarns (AREA)

Abstract

The present invention relates to the field of ring travelers for textile spinning machines. More particularly, the invention relates to a steel collar bead ring coated with a boride layer. The present invention relates to a method of boronizing a ring bead comprising coating a core with iron boride using a boronizing composition comprising a boron source/agent inert filler, primary and secondary activators applied to the bead by heat treatment.

Description

Steel boride composition for ring bead ring and process thereof
Technical Field
The present invention relates to the field of ring travelers for textile spinning machines. More particularly, the present invention relates to steel boride compositions for ring travelers and diffusion processes thereof. Advantageously, the present invention improves the improved wear-resistant ring traveler by changing the microstructure through a heat treatment process.
Background
The ring traveler is the finest and simplest mechanical element in the ring machine. It directly affects the quality of the yarns produced, as they function to physically transform the raw materials into finished products. Therefore, the ring traveler plays a very important role in the ring spinning system. The rings and bead rings have a particular effect on yarn hairiness. Wear conditions and centering of the ring play a major role. Worn ring surfaces always lead to increased yarn hairiness. Since the bead ring is subjected to high mechanical and thermal stresses during the spinning operation, improving the wear resistance of the bead ring remains a great challenge. Due to such contact, surface deformation (such as scratches and diffusion deformation) is unavoidable.
Accordingly, the present invention is intended to provide a steel boride composition for a ring bead and a diffusion process for improving the wear resistance of the ring bead by modifying the microstructure through a heat treatment process.
US4677817a discloses a bead ring for a spinning machine made of hard drawn steel wire or alloy steel wire having a ceramic coating consisting of a single layer of carbide, nitride, oxide or boride or of a composite ceramic coating formed by dispersing ceramic particles with a matrix of nickel alloy, nickel, chromium, cobalt or the like.
US6804943B2 a ring traveler for a ring spinning machine or a ring twisting machine, comprising an iron core, wherein at least one mechanically stressed part of the core has a nitride edge layer, and wherein the edge layer comprises a connection layer and a diffusion layer, the connection layer having a thickness of 8 μm to 12 μm and the diffusion layer (24) having a thickness of 100 μm to 200 μm. Wherein the nitriding agent is provided in the form of a gas comprising an NH component and an N component, a nitrogen-rich liquid or a nitrogen-rich plasma.
IN1108/CHE/1995 discloses a spinning ring for a ring spinning machine, characterized IN that at least the contact surface of the spinning ring with the bead ring is coated with a metal-phosphorus layer having a phosphorus content of 1-4% or a metal-boron layer having a boron content of 0.5-4%.
US7096656B2 discloses a ring traveler and a method for producing the same. In this case, the capping layer comprises fine-grained chromium nitride, vanadium carbide, or titanium carbonitride.
US20190233981A1 discloses a metal core, wherein the metal core is at least partially coated with an anti-friction coating consisting of at least a base polymer and a solid lubricant, wherein the layer thickness of the anti-friction coating is from 0.1 to 50 micrometers and the base polymer is selected from polyamide, polyimide, polyamide/imine.
EP3052684B1 discloses a ring for ring spinning machines comprising a metal core and a metal coating applied to the core, characterized in that the metal coating is designed as at least one hard chromium dispersion layer consisting of chromium with embedded hexagonal boron nitride, wherein the average particle size of the boron nitride is 4m 2 /g to 30m 2 /g。
US5086615a discloses a coating on the surface of a ring traveler, the coating being chemically deposited thereon and having a uniform thickness of from about 0.1 mil to about 0.5 mil, the coating comprising from about 15% to about 30% by volume of particulate polytetrafluoroethylene uniformly dispersed in a metal matrix comprising a nickel-phosphorus alloy, each fluorocarbon having a particle size on the order of from about 0.002 mil to about 0.02 mil.
US10385480B2 discloses a textile spinning bead ring comprising a substrate; a primer layer deposited on the substrate; and a metal sulfide coating deposited on the primer layer, wherein the metal sulfide coating comprises tungsten disulfide, wherein the primer layer comprises one or more of a black oxide, a nitrided steel, a manganese phosphate, and a chromium.
IN1905/CHE/2008 discloses a ring traveler having a core and a surface coating comprising one or more layers of nano oxide ceramic, nano nitride ceramic, nano carbide ceramic.
US4555326 found that if hydrocarbons were processed in pre-boronated metal equipment, coke formation and deposition, which are common at high temperatures, could be minimized if not eliminated entirely. The composition used to achieve this objective consists of boron or a boron compound comprised in an organic solvent or carrier and a specific activating material.
The existing technology is suitable for spinning machine parts and dies, most of the invention uses SS and Q245 materials for processing, the temperature is between 900 ℃ and 1400 ℃, the percentage of chemical mixture is low, the layer thickness is defined to be more than 100 microns, and the technology is only suitable for wear resistance and corrosion resistance and is not suitable for extensibility.
Therefore, there is a need for a process for ring travelers for spinning machines that uses low alloy high carbon steel tubes, with a temperature range between 850 degrees celsius and 950 degrees celsius, a high percentage of chemical mixture, a layer thickness specified to be 10 microns to 20 microns or more, improved wear resistance and coefficient of friction and a process designed to obtain elongation properties.
Disclosure of Invention
The main object of the present invention is to provide a boride composition for a ring bead and a process for improving the wear resistance of a ring bead by modifying the microstructure through a heat treatment process.
It is another object of the present invention to improve wear resistance by modifying the microstructure through a special heat treatment process, thereby improving the performance and life of the ring traveler.
It is a further object of the present invention to provide an improved wear resistant steel boride composition or boronated steel composition for a ring traveler to increase productivity by reducing the number of transitions.
It is yet another object of the present invention to provide an improved ring traveler having a boronated steel sliding surface with a layer thickness in the range of 10 microns to 20 microns.
Various embodiments of the present invention may overcome one or more problems of the conventional prior art.
The main aspect of the present invention is to provide a ring traveler comprising a steel core, and wherein a surface portion of the core has a boronizing layer, wherein the boronizing layer or the boronizing layer comprises iron boride FeB and FeB 2 。
Another aspect of the present invention provides a ring bead wherein the boride layer formed on the surface of the ring bead comprises iron boride FeB, feB 2 The layer thickness ranges from 15 micrometers to 40 micrometers, the core hardness from 300HV to 450HV, and the surface hardness from 900HV to 1100HV.
Another aspect of the invention provides a ring traveler wherein the boride layer is reinforced with an inert filler selected from silicon carbide; the main activator is selected from sodium carbonate (Na 2 CO 3 ) Sodium tetraborate (Na) 2 B 4 O 7 )、KB 4 And combinations thereof; and the secondary activator is selected from the group consisting of dilute alumina, siC, and mixtures thereof.
In another aspect, the present invention provides a boronating composition for a steel collar bead ring having a steel core, wherein the composition comprises in weight percent,
boron source/agent-1% to 6%;
inert filler-2% to 5%;
primary activator-2% to 5%; and
auxiliary activator-60% to 90%,
wherein the boron agent is boron carbide (B) 4 C) And (2) and
wherein the particle size of the boron carbide is 5-9 microns.
Another aspect of the invention provides a boronizing composition for a ring steel wire ring having a steel core, wherein the inert filler is silicon carbide (SiC).
In another aspect of the invention, a boronated composition is provided wherein the primary activator is selected from sodium carbonate (Na 2 CO 3 ) Sodium tetraborate (Na) 2 B 4 O 7 )、KB 4 And combinations thereof to achieve 100%.
Another aspect of the invention provides a boronated composition wherein the secondary activator is selected from the group consisting of dilute alumina, siC, and mixtures thereof.
Another aspect of the present invention provides a method of preparing a boronated steel ring bead having a steel core, comprising the steps of:
heat treating the uncoated core in a reaction chamber at a temperature in the range 900 ℃ to 950 ℃ for 2 hours to 6 hours; and
borating the core;
wherein borating the core comprises:
preparing a boronizing composition comprising a boron agent, an inert filler, a primary activator and a secondary activator, and preheating at 650 ℃ for 30 minutes to 45 minutes;
raising the temperature to 800 ℃ to 850 ℃ for 15 minutes to 20 minutes;
further raising the temperature to 850 ℃ to 950 ℃ for 2 to 6 hours; and is also provided with
Alkaline quenching is performed at a temperature of 400 ℃ to produce a boronated ring traveler.
Another aspect of the invention provides a method of making a boronated steel collar bead ring having a steel core, wherein the boronizing composition is supplied in the form of a gas, liquid or paste.
In another aspect, the present invention provides a method of preparing a boride ring traveler having a steel core, wherein the boride thin layer formed on the surface of the ring traveler is iron boride FeB, feB 2 The layer thickness ranges from 15 micrometers to 40 micrometers, the core hardness from 300HV to 450HV, and the surface hardness from 900HV to 1100HV.
Drawings
So that the manner in which the features, advantages and objects of the invention are attained and can be understood in more detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings which form a part of this specification. It is to be noted, however, that the appended drawings illustrate only preferred embodiments of this invention and are therefore not to be considered limiting of its scope, for the invention may admit to other equally effective embodiments.
Fig. 1 shows a hardened or unheated ring traveler after a boration treatment according to one embodiment of the invention.
Fig. 2 shows a hardened or unheated ring traveler after a boration treatment according to another embodiment of the invention.
Detailed Description
The present invention relates to the field of ring travelers for textile spinning machines. More particularly, the present invention relates to a boride composition for a ring traveler and a diffusion process thereof. Advantageously, the present invention improves the improved wear-resistant ring traveler by changing the microstructure through a heat treatment process.
The ring traveler according to the invention has an uncoated core, which is composed of steel and is heat treated in a boron atmosphere, resulting in the diffusion of boron heat into the steel. This process is known as boronation, and such a diffusion layer provides a hardened surface and enhances wear resistance.
The object of the present invention is to increase the life of a ring traveler for a ring spinning machine or a ring twisting machine, thereby further improving the running and handling properties, while reducing wear and tear on the ring itself.
The ring traveler according to the invention has an uncoated core made of steel material and consists of a boride layer over the entire surface, with which the core slides on or in which the yarn is guided on the ring of a ring spinning or ring twisting machine.
By means of the composition of the boron agent controlled according to the invention and by means of a suitable choice of process parameters (including temperature-time curve), the elasticity of the amorphous steel wire ring, to which the steel wire ring is fixed, can be maintained. The core is heated to a temperature in the range 900 ℃ to 950 ℃ and held in said temperature range for 2 hours to 6 hours. The boron agent may be provided in gaseous, liquid or powder form, preferably consisting of a halogen carrier and a diluted thermal activator component.
The boride layer of the ring bead core comprises no additional diffusion layer; the thickness of this layer is preferably up to 25 microns. However, the diffusion thickness may be controlled as desired. The carrier agent contains halogen in addition to the added boron component and some diluted thermal diffusion activator component. Meanwhile, the thickness of the diffusion layer can be controlled by the soaking time as required.
According to an aspect of the present invention, there is provided a ring traveler having a core and a coating/diffusion layer consisting of boron carbide (B) preferably selected from 1% to 6% 4 C) The boron composition of (2) has an average particle size in the range of 5 microns to 9 microns.
Furthermore, the diffusion layer/boronizing layer composition according to the invention is prepared by a process selected from the group consisting ofInert filler reinforcement of silicon carbide; the main activator is selected from sodium carbonate (Na 2 CO 3 ) Sodium tetraborate (Na) 2 B 4 O 7 )、KB 4 And combinations thereof; and the secondary activator is selected from the group consisting of dilute alumina, siC, and mixtures thereof.
According to a preferred embodiment of the invention, the boride composition comprises, in weight percent: inert filler-2% to 5%; primary activator-2% to 5%; and a secondary activator-60% to 90%.
The preparation of the ring bead ring according to the invention comprises a two-step reaction process:
the first reaction step is a reaction between the boron-generating substance or boronated composition and the core to be coated with the boronated composition. In a preferred embodiment, the core comprises a ring bead and the coating is a boride layer. The properties of the coating are a function of time and temperature. This forms a thin and dense boride layer. This reaction is followed by diffusion, which is a faster process.
Boriding is carried out with the compound boron carbide as active source and additionally SiC as inert filler, sodium carbonate (Na 2 CO 3 ) Sodium tetraborate (Na) 2 B 4 O 7 ) The special mixture of activators is added at a mixing percentage of 40:30:30, and in addition to the boron component and 60% to 90% diluted alumina as additional/auxiliary activators, the diffusion process is started at 800 to 860 degrees celsius, and boron atoms will then diffuse into the workpiece.
The core portion of the ring traveler is heated to a temperature in the range of 900 to 950 ℃ and held in said temperature range for 2 to 6 hours. The boron agent may be supplied in the form of a gas, liquid or powder, which is preferably prepared from a thermally activated agent component (sodium carbonate (Na 2 CO 3 ) Sodium tetraborate (Na) 2 B 4 O 7 ) And KB 4 Composition is prepared.
Embodiments of the present invention are further described below by way of examples.
Example 1:
the composition of the ring traveler used for the experimental procedure was 97% iron; 1% carbon; 0.5% chromium; 0.5% manganese; 0.2% sulfur; and 0.15% phosphorus.
The ring traveler comprises the steel material of the above composition and is heat-treated in the boron atmosphere, resulting in the thermal diffusion of boron into the steel. The boronized coating is a coating covering a surface portion of the core and consisting of a boronized layer, wherein the boronized layer or the boronized layer comprises iron boride FeB and FeB 2 . The thickness of the boride layer is in the range of 15 to 40 microns, the core hardness is 300 to 450HV, and the surface hardness is 900 to 1100HV. The boride layer, also known as a diffusion layer, provides a hardened surface and improves wear resistance.
For the boronation, the boronation composition used comprises in weight percent: the boron source/agent-1% to 6% may be any boron agent, inert filler-2% to 5%, primary activator-2% to 5%, secondary activator-60% to 90%, for example, boron carbide (B) with a particle size of 5 microns to 9 microns 4 C)。
The boron mixture is prepared from all necessary additives such as inert fillers, primary and secondary activators in the form of a liquid or paste, the part is immersed in the liquid or paste and heat treated using a furnace with a temperature in the range of 850 degrees celsius to 950 degrees celsius until the boron reacts with the steel part surface and gradually begins to penetrate into the surface. The size of the layers depends on the soak time and requirements.
The boride layer is reinforced by an inert filler selected from silicon carbide; the main activator is selected from sodium carbonate (Na 2 CO 3 ) Sodium tetraborate (Na) 2 B 4 O 7 )、KB 4 And combinations thereof; and the secondary activator is selected from the group consisting of dilute alumina, siC, and mixtures thereof. The inert filler is also selected from alumina or SiC.
The process comprises the following steps:
the various chemical agents are mixed to form a paste in given percentages, the ring bead or the portion of the bead to be coated is immersed in the paste and put into an oven, preheated at 650 ℃ for 30 to 45 minutes. Then, the temperature was raised to 850 ℃, and then, immersed for 15 minutes to 25 minutes. Then, the temperature is raised to 900 to 950 ℃ and maintained for 2 to 6 hours. After this process was completed, the temperature was reduced to 400 degrees celsius and then quenched using an alkaline bath.
Example 2:
in another exemplary embodiment, the boronizing composition is supplied to the reaction chamber in the form of a reactive gas for forming a coating of the bead ring surface.

Claims (3)

1. A ring traveler comprising:
the steel core is made of low-alloy high-carbon steel;
wherein the surface portion of the steel core has a boronizing layer, and
wherein the boronizing layer or the boronizing layer comprises iron boride FeB and FeB 2 The boride layer formed on the surface of the ring bead comprises iron boride FeB, feB 2 The boride layer thickness ranges from 15 microns to 40 microns, the steel core hardness ranges from 300HV to 450HV, and the surface hardness ranges from 900HV to 1100HV,
wherein the boride layer is reinforced with an inert filler selected from the group consisting of silicon carbide; the main activator is selected from sodium carbonate (Na 2 CO 3 ) Sodium tetraborate (Na) 2 B 4 O 7 ）、KB 4 Or a combination thereof; and the secondary activator is selected from dilute alumina, siC or mixtures thereof;
a boride composition for boronizing the ring traveler comprising, in weight percent,
boron source/agent-1% to 6%;
inert filler-2% to 5%;
primary activator-2% to 5%; and
auxiliary activator-60% to 90%,
wherein the boron source/agent is boron carbide (B 4 C) And (2) and
wherein the particle size of the boron carbide is 5-9 microns.
2. A method of making the ring bead of claim 1, the ring bead having a steel core, comprising the steps of:
heat treating the uncoated steel core in a reaction chamber at a temperature in the range 900 ℃ to 950 ℃ for 2 hours to 6 hours; and
borating the steel core;
wherein boronizing the steel core comprises:
preparing a boronizing composition comprising a boron agent, an inert filler, a primary activator and a secondary activator, and preheating at 650 ℃ for 30 minutes to 45 minutes;
raising the temperature to 800 ℃ to 850 ℃ for 15 minutes to 20 minutes;
further raising the temperature to 850 ℃ to 950 ℃ for 2 to 6 hours; and is also provided with
Alkaline quenching is performed at a temperature of 400 ℃ to produce a boronated ring traveler.
3. The method of claim 2, wherein the boronizing composition is supplied in the form of a gas, a liquid or a paste.
CN202180015906.9A 2020-02-24 2021-02-17 Steel boride composition for ring bead ring and process thereof Active CN115135825B (en)

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IN202041007724 2020-02-24
IN202041007724 2020-02-24
PCT/IN2021/050148 WO2021171304A1 (en) 2020-02-24 2021-02-17 A steel boronizing composition for ring traveller and process thereof

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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CN102443891A (en) * 2011-09-22 2012-05-09 吴江秦邦纺织有限公司 Bead ring
CN104451536A (en) * 2014-12-12 2015-03-25 西安理工大学 Method for rapidly boriding Q235 steel
CN108018627A (en) * 2016-11-03 2018-05-11 青岛鼎和精铸有限公司 A kind of wire loop with rubber seal

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2153416A1 (en) * 1971-09-24 1973-05-04 Kempten Elektroschmelz Gmbh Boronising compsn - in form of paste, suspension or emulsion
CN102443891A (en) * 2011-09-22 2012-05-09 吴江秦邦纺织有限公司 Bead ring
CN104451536A (en) * 2014-12-12 2015-03-25 西安理工大学 Method for rapidly boriding Q235 steel
CN108018627A (en) * 2016-11-03 2018-05-11 青岛鼎和精铸有限公司 A kind of wire loop with rubber seal

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* Cited by examiner, † Cited by third party
Title
张颖怀主编.《材料表面工程技术》.中国矿业大学出版社,2016,第110-115页. *
王顺兴主编.《金属热处理原理和工艺》.哈尔滨工业大学出版社,2019,(第2版),第291-292页. *
陈辉主编.《材料科学与工程专业认识实践指导书》.中国矿业大学出版社,2017,第45页. *

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