CN106270331A - A kind of free forging method of petroleum drilling and mining lock tongue body - Google Patents

A kind of free forging method of petroleum drilling and mining lock tongue body Download PDF

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Publication number
CN106270331A
CN106270331A CN201610788628.1A CN201610788628A CN106270331A CN 106270331 A CN106270331 A CN 106270331A CN 201610788628 A CN201610788628 A CN 201610788628A CN 106270331 A CN106270331 A CN 106270331A
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CN
China
Prior art keywords
forging
step
lock tongue
tongue body
forge
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CN201610788628.1A
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Chinese (zh)
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CN106270331B (en
Inventor
李伟阳
王高社
孟瑞斌
康海鹏
朱保亮
李大乔
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宝鸡石油机械有限责任公司
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Publication of CN106270331A publication Critical patent/CN106270331A/en
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Publication of CN106270331B publication Critical patent/CN106270331B/en

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Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B21MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
    • B21JFORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
    • B21J5/00Methods for forging, hammering, or pressing; Special equipment or accessories therefor
    • B21J5/06Methods for forging, hammering, or pressing; Special equipment or accessories therefor for performing particular operations

Abstract

The invention discloses the free forging method of a kind of petroleum drilling and mining lock tongue body, specifically implement according to following steps: prepare before step 1, forging;Step 2, forging: mainly include that blanking, blank are come out of the stove, used angle iron sub-material impression, it is ensured that step is vertical without gradient;Clap homalocephalus portion, it is ensured that gauge;Afterbody forging survives, and meets forging's block dimension;Clamping afterbody one end, round as a ball forging head: gradually rotate forging in the counterclockwise direction, rotate about 15 degree every time, forge circular arc successively, planish circular arc lower planes, for ensureing to forge head projection section size, time round as a ball, 5mm is stayed in top forging more;Forging head boss, heater head to forging temperature, afterbody need not heating, to prevent deformation;Using dust and sand cold during cooling, cladding thickness is more than 80mm;Step 3, correction;Step 4, cooling are come out of the stove, and it is big that the present invention solves lock tongue body forging allowance present in prior art, and forging flow lines is imperfect, and total quality is the best, the problem that quality cannot get a promotion.

Description

A kind of free forging method of petroleum drilling and mining lock tongue body

Technical field

The invention belongs to plant equipment preparing technical field, be specifically related to the flat-die forging of a kind of petroleum drilling and mining lock tongue body Method.

Background technology

The shape of elevator lock tongue body such as Fig. 1, the forging of elevator lock tongue body is a new problem.It to be shaped as one end square, The other end is for circular (circular axis and overall median perpendicular) and carries a little short wooden stake, and centre is eccentric in asymmetric square.Produce Quality requires height, and forging difficulty is big.Conventional lock tongue body forging be solid forging be square.Allowance is big, forging flow lines Imperfect, total quality is the best, and quality cannot get a promotion.

Summary of the invention

It is an object of the invention to provide the free forging method of a kind of petroleum drilling and mining lock tongue body, solve in prior art The lock tongue body forging allowance existed is big, and forging flow lines is imperfect, and total quality is the best, and what quality cannot get a promotion asks Topic.

The technical solution adopted in the present invention is, the free forging method of a kind of petroleum drilling and mining lock tongue body, specifically according to Following steps are implemented:

Prepare before step 1, forging;

Step 2, forging;

Step 3, correction;

Step 4, cooling are come out of the stove.

The feature of the present invention also resides in,

Step 1 is specifically implemented according to following steps:

Step (1.1), establishment forging drawing: according to part shape, forging, close to part shape, places surplus and tolerance, head Portion's boss strengthens surplus and tolerance, to guarantee each several part allowance;

Step (1.2), calculating forge weight, cutting stock weight: calculate forge weight, forge weight=forging according to forging drawing Density * forging volume, it is also contemplated that the fillet of forging herein;

Step (1.3), the choosing of blanking specification: according to ring flange size in the case of ensureing to forge, it is considered to forging ratio Requirement and combine the situation of existing material, blanking specification is chosen forNow forging ratio is 1.5;

Step (1.4), forging equipment, firing equipment, forging temperature are chosen: choosing 750 kilograms of forging hammers, firing equipment is chosen Gas chamber type stove, initial forging temperature: 1180 DEG C, final forging temperature: 850 DEG C;

Step (1.5), forging times, cooling after forged select: choosing forging times is 3 fire, and cooling after forged uses dust and sand Cold, cladding thickness is more than 80mm, if raw material form uses steel ingot, controls cooling, specially dehydrogenation after being necessary for forging Process.

Step 2 is specifically implemented according to following steps:

Step (2.1), blanking: sawing machine sawingHigh temperature enters stove, is heated to 1180 DEG C and is incubated 2 hours, Then come out of the stove and forge, when temperature is less than final forging temperature 850 DEG C, it is necessary to stop forging, enters stove and reheat then to come out of the stove and carry out Forging;

Step (2.2), blank are come out of the stove, and are vertically arranged in lower anvil, and light upsetting once, makes oxide skin come off, pulls out in the axial direction Forging side 202 × 153 × 60;

Step (2.3), use angle iron sub-material impression, it is ensured that step is vertical without gradient;

Step (2.4), bat homalocephalus portion, it is ensured that gauge;

The forging of step (2.5), afterbody survives, and meets forging's block dimension;

Step (2.6), clamping afterbody one end, round as a ball forging head: gradually rotate forging in the counterclockwise direction, rotate every time About 15 degree, forge circular arc successively, planish circular arc lower planes, for ensureing to forge head projection section size, top forging time round as a ball Make and stay 5mm more;

Step (2.7), forging head boss, heater head to forging temperature, afterbody need not heating, to prevent deformation.

Using dust and sand cold when step 4 cools down, cladding thickness is more than 80mm.

The invention has the beneficial effects as follows, the free forging method of a kind of petroleum drilling and mining lock tongue body, the forging of elevator lock tongue body The process of making meets the prescription of elevator lock tongue body;Prepared elevator lock tongue body, forging shapes along finished product profile, it is possible to protect Holding the complete streamline of forging, its mechanical performance index is better than square and carries out machined piece.

Accompanying drawing explanation

Fig. 1 be the present invention a kind of petroleum drilling and mining lock tongue body free forging method in the open die forging forging of elevator lock tongue body Schematic diagram;

Fig. 2 be the present invention a kind of petroleum drilling and mining lock tongue body free forging method in the open die forging work step of elevator lock tongue body First step forging side schemes;

Fig. 3 be the present invention a kind of petroleum drilling and mining lock tongue body free forging method in the open die forging work step of elevator lock tongue body Second step sub-material procedure chart;

Fig. 4 be the present invention a kind of petroleum drilling and mining lock tongue body free forging method in the open die forging work step of elevator lock tongue body 3rd step right-hand member claps flat schematic diagram;

Fig. 5 be the present invention a kind of petroleum drilling and mining lock tongue body free forging method in the open die forging work step of elevator lock tongue body 4th step left end shapes schematic diagram;

Fig. 6 be the present invention a kind of petroleum drilling and mining lock tongue body free forging method in the open die forging work step of elevator lock tongue body 5th step right-hand member round as a ball shaping schematic diagram;

Fig. 7 be the present invention a kind of petroleum drilling and mining lock tongue body free forging method in the open die forging work step of elevator lock tongue body 5th step right-hand member round as a ball forming process schematic diagram;

Fig. 8 be the present invention a kind of petroleum drilling and mining lock tongue body free forging method in the open die forging work step of elevator lock tongue body 6th step right-hand member round as a ball forming process schematic diagram.

Detailed description of the invention

The present invention is described in detail with detailed description of the invention below in conjunction with the accompanying drawings.

Petroleum drilling and mining elevator lock tongue body material therefor is 20SiMo2MoVA.

Owing to forging is complex-shaped, solid forging difficulty is big.According to the parts character of body, analyze the probability shaped.

The free forging method of the present invention a kind of petroleum drilling and mining lock tongue body, specifically implements according to following steps:

Preparing before step 1, forging, step 1 is specifically implemented according to following steps:

Step (1.1), establishment forging drawing: according to part shape, forging, close to part shape, places surplus and tolerance, head Portion's boss strengthens surplus and tolerance, to guarantee each several part allowance;

Step (1.2), calculating forge weight, cutting stock weight: calculate forge weight, forge weight=forging according to forging drawing Density * forging volume, it is also contemplated that the fillet of forging herein;

Step (1.3), the choosing of blanking specification: according to ring flange size in the case of ensureing to forge, it is considered to forging ratio Requirement and combine the situation of existing material, blanking specification is chosen forNow forging ratio is 1.5;

Step (1.4), forging equipment, firing equipment, forging temperature are chosen: choosing 750 kilograms of forging hammers, firing equipment is chosen Gas chamber type stove, initial forging temperature: 1180 DEG C, final forging temperature: 850 DEG C;

Step (1.5), forging times, cooling after forged select: choosing forging times is 3 fire, and cooling after forged uses dust and sand Cold, cladding thickness is more than 80mm, if raw material form uses steel ingot, controls cooling, specially dehydrogenation after being necessary for forging Process;

Step 2, forging, specifically implement according to following steps:

Step (2.1), blanking: sawing machine sawingHigh temperature enters stove, is heated to 1180 DEG C and is incubated 2 hours, Then come out of the stove and forge, when temperature is less than final forging temperature 850 DEG C, it is necessary to stop forging, enters stove and reheat then to come out of the stove and carry out Forging;

Step (2.2), blank are come out of the stove, and are vertically arranged in lower anvil, and light upsetting once, makes oxide skin come off, pulls out in the axial direction Forging side 202 × 153 × 60, as shown in Figure 2;

Step (2.3), use angle iron sub-material impression, as shown in Figure 3, it is ensured that step is vertical without gradient;

Step (2.4), bat homalocephalus portion, as shown in Figure 4, it is ensured that gauge;

The forging of step (2.5), afterbody survives, as it is shown in figure 5, meet forging's block dimension;

Step (2.6), clamping afterbody one end, round as a ball forging head: as shown in Figure 6, Figure 7, the most gradually turn Dynamic forging, rotates about 15 degree every time, forges circular arc successively, planish circular arc lower planes, for ensureing to forge head projection section chi Very little, time round as a ball, 5mm is stayed in top forging more;

Step (2.7), forge head boss, as shown in Figure 8, heater head to forging temperature, afterbody need not heating, with Prevent deformation;

Step 3, correction, the correction of each several part size is as shown in Figure 1;

Step 4, cooling are come out of the stove, and use dust and sand cold during cooling, and cladding thickness is more than 80mm.

Utilize some simple instruments, use unique process to carry out forging and process, prepared elevator lock tongue body, Forging shapes along finished product profile, it is possible to keeping the complete streamline of forging, its mechanical performance index is better than square and carries out machining Part, saves raw material on the premise of improving quality, reduces production cost.

Claims (4)

1. the free forging method of a petroleum drilling and mining lock tongue body, it is characterised in that specifically implement according to following steps:
Prepare before step 1, forging;
Step 2, forging;
Step 3, correction;
Step 4, cooling are come out of the stove.
The free forging method of a kind of petroleum drilling and mining lock tongue body the most according to claim 1, it is characterised in that described step Rapid 1 specifically implements according to following steps:
Step (1.1), establishment forging drawing: according to part shape, forging, close to part shape, places surplus and tolerance, and head is convex Platform strengthens surplus and tolerance, to guarantee each several part allowance;
Step (1.2), calculating forge weight, cutting stock weight: calculating forge weight according to forging drawing, forge weight=forging is close Degree * forging volume, it is also contemplated that the fillet of forging herein;
Step (1.3), the choosing of blanking specification: according to ring flange size in the case of ensureing to forge, it is considered to wanting of forging ratio Seeking and combine the situation of existing material, blanking specification is chosen forNow forging ratio is 1.5;
Step (1.4), forging equipment, firing equipment, forging temperature are chosen: choosing 750 kilograms of forging hammers, combustion gas chosen by firing equipment Batch-type furnace, initial forging temperature: 1180 DEG C, final forging temperature: 850 DEG C;
Step (1.5), forging times, cooling after forged select: choosing forging times is 3 fire, and cooling after forged uses dust and sand cold, covers Lid thickness is more than 80mm, if raw material form uses steel ingot, controls cooling, specially dehydrogenation after being necessary for forging.
The free forging method of a kind of petroleum drilling and mining lock tongue body the most according to claim 1, it is characterised in that described step Rapid 2 specifically implement according to following steps:
Step (2.1), blanking: sawing machine sawingHigh temperature enters stove, is heated to 1180 DEG C and is incubated 2 hours, then Come out of the stove and forge, when temperature is less than final forging temperature 850 DEG C, it is necessary to stop forging, enters stove and reheat then to come out of the stove and forge;
Step (2.2), blank are come out of the stove, and are vertically arranged in lower anvil, and light upsetting once, makes oxide skin come off, in the axial direction pulling forging side 202×153×60;
Step (2.3), use angle iron sub-material impression, it is ensured that step is vertical without gradient;
Step (2.4), bat homalocephalus portion, it is ensured that gauge;
The forging of step (2.5), afterbody survives, and meets forging's block dimension;
Step (2.6), clamping afterbody one end, round as a ball forging head: gradually rotate forging in the counterclockwise direction, rotate about 15 every time Degree, forges circular arc successively, planishes circular arc lower planes, and for ensureing to forge head projection section size, time round as a ball, top forging is many Stay 5mm;
Step (2.7), forging head boss, heater head to forging temperature, afterbody need not heating, to prevent deformation.
The free forging method of a kind of petroleum drilling and mining lock tongue body the most according to claim 1, it is characterised in that described step Using dust and sand cold during rapid 4 cooling, cladding thickness is more than 80mm.
CN201610788628.1A 2016-08-31 2016-08-31 A kind of free forging method of petroleum drilling and mining lock tongue body CN106270331B (en)

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Application Number Priority Date Filing Date Title
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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08170482A (en) * 1994-12-16 1996-07-02 Eagle Ind Co Ltd Excavating bit and manufacture thereof
CN102019336A (en) * 2010-11-16 2011-04-20 宝鼎重工股份有限公司 Die forging shaping technology specially used for manufacturing petroleum drilling machine elevator movable wing plates
JP2011256651A (en) * 2010-06-11 2011-12-22 Daido Steel Co Ltd Drill bit and manufacturing method thereof
CN102319849A (en) * 2011-07-06 2012-01-18 中国第一重型机械股份公司 The forging method that large-scale steel ingot directly pulls out in advance
CN102717014A (en) * 2012-06-14 2012-10-10 宝鸡石油机械有限责任公司 Method for freely forging casing elevator for petroleum drilling and production
US20150096346A1 (en) * 2013-10-09 2015-04-09 Hunting Energy Services, Inc. Process for Upset Forging of Drill Pipe and Articles Produced Thereby

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08170482A (en) * 1994-12-16 1996-07-02 Eagle Ind Co Ltd Excavating bit and manufacture thereof
JP2011256651A (en) * 2010-06-11 2011-12-22 Daido Steel Co Ltd Drill bit and manufacturing method thereof
CN102019336A (en) * 2010-11-16 2011-04-20 宝鼎重工股份有限公司 Die forging shaping technology specially used for manufacturing petroleum drilling machine elevator movable wing plates
CN102319849A (en) * 2011-07-06 2012-01-18 中国第一重型机械股份公司 The forging method that large-scale steel ingot directly pulls out in advance
CN102717014A (en) * 2012-06-14 2012-10-10 宝鸡石油机械有限责任公司 Method for freely forging casing elevator for petroleum drilling and production
US20150096346A1 (en) * 2013-10-09 2015-04-09 Hunting Energy Services, Inc. Process for Upset Forging of Drill Pipe and Articles Produced Thereby

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
何鸿,等: "液压自动吊卡技术现状及发展建议", 《石油机械》 *

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