CN107350731A - A kind of processing technology of high intensity plunger pump bonnet - Google Patents
A kind of processing technology of high intensity plunger pump bonnet Download PDFInfo
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- CN107350731A CN107350731A CN201610302586.6A CN201610302586A CN107350731A CN 107350731 A CN107350731 A CN 107350731A CN 201610302586 A CN201610302586 A CN 201610302586A CN 107350731 A CN107350731 A CN 107350731A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23P—METAL-WORKING NOT OTHERWISE PROVIDED FOR; COMBINED OPERATIONS; UNIVERSAL MACHINE TOOLS
- B23P15/00—Making specific metal objects by operations not covered by a single other subclass or a group in this subclass
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/10—Valves; Arrangement of valves
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Abstract
The invention discloses a kind of processing technology of high intensity plunger pump bonnet, comprise the following steps：Blanking, heat, forging, normalizing；Rough turn big end, rough turn total thickness, rough turn small end counterbore, rough turn big end counterbore；It is quenched, shot-peening, flaw detection；Smart car small end, the big end of smart car, smart car screw thread, the imperfect tooth of thread milling, drilling；Examine and qualified obtain bonnet finished product.Process controllability of the present invention is high, improves precision machining, and it is small to reduce converted products size mistake, high yield rate, finished product is high with plunger pump fitness, good airproof performance, and it ensure that the internal performance and mechanical performance of finished product, it is ensured that the prolonged steady operation of plunger pump.
Description
Technical field
The present invention relates to machining technology field, and in particular to a kind of processing technology of high intensity plunger pump bonnet.
Background technology
Plunger pump is an important device of hydraulic system, and it is moved back and forth by plunger in cylinder body, the volume of seal operation cavity volume is changed to realize oil suction, force feed.Plunger pump has the advantages that high rated pressure, compact-sized, efficiency high and Flow-rate adjustment are convenient, it is widely used in the occasion that high pressure, big flow and flow need to adjust, plunger pump bonnet is the important composition part of plunger pump, in order to ensure the stable work of plunger pump, it is required that bonnet intensity is high, installation gap is small, good seal performance.Traditional bonnet processing technology is to be shaped using high performance material by the method for machining, and process inconvenience control, converted products precision is not high, and the steady operation of plunger pump can be influenceed after long-time use.
The content of the invention
Goal of the invention：In view of the shortcomings of the prior art, the present invention provides a kind of processing technology of high intensity plunger pump bonnet, and processing gained bonnet precision is high, and installation gap is small.
Technical scheme：The processing technology of high intensity plunger pump bonnet of the present invention, comprises the following steps：
（1）Blanking：Use with blank of the saw by Raw material processing into a diameter of 160mm, length for 185mm, billet weight is 29.2Kg after guarantee blanking, the smooth impulse- free robustness of two sections；
（2）Heating：Blank is heated using gas heating furnace, heating-up temperature is 1000 ~ 1150 DEG C, heating rhythm control 35 ± 5 seconds；
（3）Forging：Conducting forging processing is carried out using 750Kg pneumatic hammers, a diameter of 187.5 ~ 189.5mm is formed after processing, the blank that length is 130 ~ 131.5mm；
（4）Normalizing：Blank is heat-treated using car type furnace, to 910 DEG C ± 10 DEG C, insulation is cooled down heating-up temperature after 3 hours using cooling air mode；
（5）It is rough turn：Using lathe successively rough turn big end, rough turn total thickness, rough turn small end counterbore, rough turn big end counterbore；
（6）It is quenched：Heated using shaft furnace, be heated to 860 DEG C ± 10 DEG C, be incubated 3 hours, be put into 40 DEG C ~ 80 DEG C of oil groove and quench, be cooled to 200 DEG C and hang out oil groove, detect Rockwell hardness number；Using well furnace tempering, 590 DEG C ~ 610 DEG C are heated to, is quenched to most long delay time≤2 hour of tempering, water cooling of coming out of the stove is to less than 200 DEG C；
（7）Shot-peening：Shot blasting on surface processing is carried out using compressed air shotblasting machine；
（8）Flaw detection：Flaw detection is carried out using defectoscope；
（9）Smart car：Using lathe successively smart car small end, the big end of smart car, smart car screw thread, the imperfect tooth of milling, drilling；
（10）Examine and qualified obtain bonnet finished product.
Above-mentioned technical proposal is further improved, the raw material uses the materials of AISI 4140.
Further, the step（5）In it is rough turn be specially：Blank small end is pressed from both sides using lathe, car total thickness 129 ± 1.0mm of size, the big end external diameter of car is 184 ± 0.5mm of diameter, length >=92mm, and the big end of car 172 ± 0.5mm of small external diameter diameter, 32 ± 0.5mm of shoulder height, 1.5 × 45 ° of break corner and chamfering are gone in periphery；Blank is pressed from both sides using lathe, car total thickness size, ensures that end face car goes out 127 ± 0.3mm, the small 172 ± 0.5mm of external diameter in the big end of car, 35 ± 0.3mm of height, the slight 134.5 ± 0.5mm of external diameter in the big end of car, shoulder height are 11.43 ± 0.3mm；The big end of car is pressed from both sides, rough turn small end counterbore, the outer counterbore aperture of small end is 60 ± 0.5mm, 17 ± 0.5mm of hole depth, counterbore aperture is 48 ± 0.5mm, 30.4 ± 0.5mm of hole depth in small end, 1.5 × 45 ° of break corner and chamfering are gone in 26 ± 0.5mm of through hole, periphery, and internal diameter is to big external diameter axiality≤0.3mm；Press from both sides car small end, the big end counterbore of car, 116 ± 0.5mm of aperture, 82.5 ± 0.3mm of hole depth.
Further, the step（5）320 turns/min of lathe spindle rotating speed in rough turn small end, the m/min of cutting speed 0.24, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；280 turns/min of lathe spindle rotating speed during rough turn aperture, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；320 turns/min of lathe spindle rotating speed during rough turn counterbore, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times
Further, the step（9）32.58 ± 0.2mm of the middle big end external diameter height of smart car, big end 131.16 ± 0.2mm of counterbore outside diameter, center bore are 28.7 ± 0.2mm；The outer counterbore 62.74 ± 0.2mm, interior 50.91 ± 0.05mm of counterbore of smart car small end；Smart car Major Diam, central diameter, path；The imperfect tooth of thread milling；6 a diameter of 25.4mm, hole 19.05 ± 0.25mm of centre-to-centre spacing external port hole are uniformly bored in end counterbore inwall greatly, aperture periphery goes break corner and chamfering 0.8 × 45 ° of clamping face bounce, perpendicularity≤0.1mm.
Further, the step（9）The big end of smart car uses Four-axis milling：The speed of mainshaft 320 turns/min, cutting speed 0.24m/min, feed 0.15mm/ turn, depth of cut 1.2mm, feed number 1 time；Lathe spindle rotating speed 380 turns/min, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 0.25mm, feed number 1 time；Lathe spindle rotating speed 440 turns/min, cutting speed 0.2m/min, feed 0.15mm/ turn, depth of cut 1.2mm, feed number 1 time；Lathe spindle rotating speed 480 turns/min, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 0.25mm, feed number 1 time.
Beneficial effect：Compared with prior art, advantages of the present invention：The present invention is by improving bonnet structure, the sealing to plunger pump is better achieved, by series of process flows such as rough turn processing, heat treatment, finishing processings, process controllability is high, improves precision machining, it is small to reduce converted products size mistake, high yield rate, finished product is high with plunger pump fitness, good airproof performance, and it ensure that the internal performance and mechanical performance of finished product, it is ensured that the prolonged steady operation of plunger pump.
Brief description of the drawings
Fig. 1 is the machining sketch chart at the rough turn big end of the present invention；
Fig. 2 is the machining sketch chart of the rough turn total thickness of the present invention；
Fig. 3 is the machining sketch chart of rough turn small end counterbore；
Fig. 4 is the machining sketch chart of rough turn big end counterbore；
Fig. 5 be it is rough turn after structural representation；
Fig. 6 is the machining sketch chart of smart car small end；
Fig. 7 is the machining sketch chart at the big end of smart car；
Fig. 8 is the machining sketch chart of smart car screw thread；
Fig. 9 is the machining sketch chart of the imperfect tooth of thread milling；
Figure 10 is the machining sketch chart of drilling；
Figure 11 be Figure 10 in A-A to sectional view；
Figure 12 is the structural representation of finished product；
Figure 13 be Figure 12 in A-A to sectional view；
Figure 14 is the partial enlarged drawing at B in Figure 13.
Embodiment
Technical solution of the present invention is described in detail below by accompanying drawing.
Embodiment 1 ：A kind of processing technology of high intensity plunger pump bonnet, comprises the following steps：
（1）Blanking：Use with blank of the saw by the Raw material processing of the materials of AISI 4140 into a diameter of 160mm, length for 185mm, billet weight is 29.2Kg after guarantee blanking, the smooth impulse- free robustness of two sections；
（2）Heating：Blank is heated using gas heating furnace, heating-up temperature is 1100 DEG C, heating rhythm control 35 seconds；
（3）Forging：Conducting forging processing is carried out using 750Kg pneumatic hammers, a diameter of 188.5mm is formed after processing, the blank that length is 131mm；
（4）Normalizing：Blank is heat-treated using car type furnace, to 910 DEG C, insulation is cooled down heating-up temperature after 3 hours using cooling air mode；
（5）It is rough turn：Using lathe successively rough turn big end, rough turn total thickness, rough turn small end counterbore, rough turn big end counterbore；As shown in Figures 1 to 4, blank small end is pressed from both sides using lathe, car total thickness size 129mm, the big end external diameter of car be diameter 184mm, length 93mm, the small external diameter diameter 172mm in the big end of car, shoulder height 32mm, and break corner simultaneously 1.5 × 45 ° of chamfering is gone on periphery；Blank is pressed from both sides using lathe, car total thickness size, ensures that end face car goes out 127mm, the small external diameter 172mm in the big end of car, height 35mm, the slight external diameter 134.5mm in the big end of car, shoulder height 11.43mm；The folder big end of car, rough turn small end counterbore, the outer counterbore aperture of small end be 60mm, hole depth 17mm, and counterbore aperture is 48mm, hole depth 30.4mm in small end, through hole 26mm, and break corner simultaneously 1.5 × 45 ° of chamfering is gone on periphery, and internal diameter is to big external diameter axiality≤0.3mm；Folder car small end, the big end counterbore of car, aperture 116mm, hole depth 82.5mm, after the completion of as shown in Figure 5；Step（5）320 turns/min of lathe spindle rotating speed in rough turn small end, the m/min of cutting speed 0.24, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；280 turns/min of lathe spindle rotating speed during rough turn aperture, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；320 turns/min of lathe spindle rotating speed during rough turn counterbore, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；
（6）It is quenched：Heated using shaft furnace, be heated to 860 DEG C DEG C, be incubated 3 hours, be put into 60 DEG C of oil groove and quench, be cooled to 200 DEG C and hang out oil groove, detect Rockwell hardness number；Using well furnace tempering, ~ 600 DEG C are heated to, is quenched to most long delay time≤2 hour of tempering, water cooling of coming out of the stove is to less than 200 DEG C；
（7）Shot-peening：Shot blasting on surface processing is carried out using compressed air shotblasting machine；
（8）Flaw detection：Flaw detection is carried out using defectoscope；
（9）Smart car：Using lathe successively smart car small end, the big end of smart car, smart car screw thread, the imperfect tooth of milling, drilling；As shown in Fig. 6 to 11, the big end external diameter height 32.58mm of smart car is big to hold counterbore outside diameter 131.16mm, center bore 28.7mm；The outer counterbore 62.74mm, interior counterbore 50.91mm of smart car small end；Smart car Major Diam, central diameter, path；The imperfect tooth of thread milling；6 a diameter of 25.4mm, hole centre-to-centre spacing external port 19.05mm hole are uniformly bored in end counterbore inwall greatly, aperture periphery goes break corner and chamfering 0.8 × 45 ° of clamping face bounce, perpendicularity≤0.1mm；The big end of smart car uses Four-axis milling：The speed of mainshaft 320 turns/min, cutting speed 0.24m/min, feed 0.15mm/ turn, depth of cut 1.2mm, feed number 1 time；Lathe spindle rotating speed 380 turns/min, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 0.25mm, feed number 1 time；Lathe spindle rotating speed 440 turns/min, cutting speed 0.2m/min, feed 0.15mm/ turn, depth of cut 1.2mm, feed number 1 time；Lathe spindle rotating speed 480 turns/min, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 0.25mm, feed number 1 time.
（10）Examine it is qualified obtain bonnet finished product, as shown in Figure 12 to Figure 14.
Embodiment 2 ：A kind of processing technology of high intensity plunger pump bonnet, comprises the following steps：
（1）Blanking：Use with blank of the saw by the Raw material processing of the materials of AISI 4140 into a diameter of 160mm, length for 185mm, billet weight is 29.2Kg after guarantee blanking, the smooth impulse- free robustness of two sections；
（2）Heating：Blank is heated using gas heating furnace, heating-up temperature is 1000 DEG C, heating rhythm control 30 seconds；
（3）Forging：Conducting forging processing is carried out using 750Kg pneumatic hammers, a diameter of 187.5mm is formed after processing, the blank that length is 130mm；
（4）Normalizing：Blank is heat-treated using car type furnace, heating-up temperature to 900 DEG C ±, insulation 3 hours after using cooling air mode cool down；
（5）It is rough turn：Using lathe successively rough turn big end, rough turn total thickness, rough turn small end counterbore, rough turn big end counterbore；As shown in Figures 1 to 4, blank small end is pressed from both sides using lathe, car total thickness size 128.0mm, the big end external diameter of car be diameter 183.5mm, length 92mm, the small external diameter diameter 171.5mm in the big end of car, shoulder height 31.5mm, and break corner simultaneously 1.5 × 45 ° of chamfering is gone on periphery；Blank is pressed from both sides using lathe, car total thickness size, ensures that end face car goes out 126.8mm, the small external diameter 171.5mm in the big end of car, height 34.8mm, the slight mm of external diameter 134. in the big end of car, shoulder height 11.13mm；The big end of car is pressed from both sides, rough turn small end counterbore, the outer counterbore aperture of small end is 59.5mm, hole depth 16.5mm, counterbore aperture is 47.5mm, hole depth 30.1mm in small end, 1.5 × 45 ° of break corner and chamfering are gone in through hole 25.5mm, periphery, and internal diameter is to big external diameter axiality≤0.3mm；Folder car small end, the big end counterbore of car, aperture 115.5mm, hole depth 82.2mm, after the completion of as shown in Figure 5；Step（5）320 turns/min of lathe spindle rotating speed in rough turn small end, the m/min of cutting speed 0.24, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；280 turns/min of lathe spindle rotating speed during rough turn aperture, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；320 turns/min of lathe spindle rotating speed during rough turn counterbore, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；
（6）It is quenched：Heated using shaft furnace, be heated to 850 DEG C, be incubated 3 hours, be put into 40 DEG C of oil groove and quench, be cooled to 200 DEG C and hang out oil groove, detect Rockwell hardness number；Using well furnace tempering, 590 DEG C are heated to, is quenched to most long delay time≤2 hour of tempering, water cooling of coming out of the stove is to less than 200 DEG C；
（7）Shot-peening：Shot blasting on surface processing is carried out using compressed air shotblasting machine；
（8）Flaw detection：Flaw detection is carried out using defectoscope；
（9）Smart car：Using lathe successively smart car small end, the big end of smart car, smart car screw thread, the imperfect tooth of milling, drilling；As shown in Fig. 6 to 11, the big end external diameter height 32.38mm of smart car is big to hold counterbore outside diameter 131.06mm, center bore 28.5mm；The outer counterbore 62.54mm, interior counterbore 50.86mm of smart car small end；Smart car Major Diam, central diameter, path；The imperfect tooth of thread milling；6 a diameter of 25.4mm, hole centre-to-centre spacing external port 18.95mm hole are uniformly bored in end counterbore inwall greatly, aperture periphery goes break corner and chamfering 0.8 × 45 ° of clamping face bounce, perpendicularity≤0.1mm；The big end of smart car uses Four-axis milling：The speed of mainshaft 320 turns/min, cutting speed 0.24m/min, feed 0.15mm/ turn, depth of cut 1.2mm, feed number 1 time；Lathe spindle rotating speed 380 turns/min, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 0.25mm, feed number 1 time；Lathe spindle rotating speed 440 turns/min, cutting speed 0.2m/min, feed 0.15mm/ turn, depth of cut 1.2mm, feed number 1 time；Lathe spindle rotating speed 480 turns/min, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 0.25mm, feed number 1 time.
（10）Examine it is qualified obtain bonnet finished product, as shown in Figure 12 to Figure 14.
Embodiment 3 ：A kind of processing technology of high intensity plunger pump bonnet, comprises the following steps：
（1）Blanking：Use with blank of the saw by the Raw material processing of the materials of AISI 4140 into a diameter of 160mm, length for 185mm, billet weight is 29.2Kg after guarantee blanking, the smooth impulse- free robustness of two sections；
（2）Heating：Blank is heated using gas heating furnace, heating-up temperature is 150 DEG C, heating rhythm control 40 seconds；
（3）Forging：Conducting forging processing is carried out using 750Kg pneumatic hammers, a diameter of 189.5mm is formed after processing, the blank that length is 131.5mm；
（4）Normalizing：Blank is heat-treated using car type furnace, to 920 DEG C, insulation is cooled down heating-up temperature after 3 hours using cooling air mode；
（5）It is rough turn：Using lathe successively rough turn big end, rough turn total thickness, rough turn small end counterbore, rough turn big end counterbore；As shown in Figures 1 to 4, blank small end is pressed from both sides using lathe, car total thickness size 130.0mm, the big end external diameter of car be diameter 184.5mm, length 92mm, the small external diameter diameter 172.5mm in the big end of car, shoulder height 32.5mm, and break corner simultaneously 1.5 × 45 ° of chamfering is gone on periphery；Blank is pressed from both sides using lathe, car total thickness size, ensures that end face car goes out 127 ± 0.3mm, the small external diameter 172.5mm in the big end of car, height 35.3mm, the slight external diameter 134.9mm in the big end of car, shoulder height 11.73mm；The big end of car is pressed from both sides, rough turn small end counterbore, the outer counterbore aperture of small end is 60.5mm, hole depth 17.5mm, counterbore aperture is 48.5mm, hole depth 30.9mm in small end, 1.5 × 45 ° of break corner and chamfering are gone in through hole 26.5mm, periphery, and internal diameter is to big external diameter axiality≤0.3mm；Folder car small end, the big end counterbore of car, aperture 116.5mm, hole depth 82.8mm, after the completion of as shown in Figure 5；Step（5）320 turns/min of lathe spindle rotating speed in rough turn small end, the m/min of cutting speed 0.24, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；280 turns/min of lathe spindle rotating speed during rough turn aperture, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；320 turns/min of lathe spindle rotating speed during rough turn counterbore, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；
（6）It is quenched：Heated using shaft furnace, be heated to 870 DEG C, be incubated 3 hours, be put into 80 DEG C of oil groove and quench, be cooled to 200 DEG C and hang out oil groove, detect Rockwell hardness number；Using well furnace tempering, 610 DEG C are heated to, is quenched to most long delay time≤2 hour of tempering, water cooling of coming out of the stove is to less than 200 DEG C；
（7）Shot-peening：Shot blasting on surface processing is carried out using compressed air shotblasting machine；
（8）Flaw detection：Flaw detection is carried out using defectoscope；
（9）Smart car：Using lathe successively smart car small end, the big end of smart car, smart car screw thread, the imperfect tooth of milling, drilling；As shown in Fig. 6 to 11, the big end external diameter height 32.78mm of smart car is big to hold counterbore outside diameter 131.36mm, center bore 28.9mm；The outer counterbore 62.94mm, interior counterbore 50.96mm of smart car small end；Smart car Major Diam, central diameter, path；The imperfect tooth of thread milling；6 a diameter of 25.4mm, hole centre-to-centre spacing external port 19.25mm hole are uniformly bored in end counterbore inwall greatly, aperture periphery goes break corner and chamfering 0.8 × 45 ° of clamping face bounce, perpendicularity≤0.1mm；The big end of smart car uses Four-axis milling：The speed of mainshaft 320 turns/min, cutting speed 0.24m/min, feed 0.15mm/ turn, depth of cut 1.2mm, feed number 1 time；Lathe spindle rotating speed 380 turns/min, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 0.25mm, feed number 1 time；Lathe spindle rotating speed 440 turns/min, cutting speed 0.2m/min, feed 0.15mm/ turn, depth of cut 1.2mm, feed number 1 time；Lathe spindle rotating speed 480 turns/min, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 0.25mm, feed number 1 time.
（10）Examine it is qualified obtain bonnet finished product, as shown in Figure 12 to Figure 14.
As described above, although the present invention has been represented and described with reference to specific preferred embodiment, but it shall not be construed as to the limitation of itself of the invention., can various changes can be made in the form and details to it under the premise of the spirit and scope of the present invention that appended claims define are not departed from.
Claims (6)
1. a kind of processing technology of high intensity plunger pump bonnet, it is characterised in that comprise the following steps：
（1）Blanking：Use with blank of the saw by Raw material processing into a diameter of 160mm, length for 185mm, billet weight is 29.2Kg after guarantee blanking, the smooth impulse- free robustness of two sections；
（2）Heating：Blank is heated using gas heating furnace, heating-up temperature is 1000 ~ 1150 DEG C, heating rhythm control 35 ± 5 seconds；
（3）Forging：Conducting forging processing is carried out using 750Kg pneumatic hammers, a diameter of 187.5 ~ 189.5mm is formed after processing, the blank that length is 130 ~ 131.5mm；
（4）Normalizing：Blank is heat-treated using car type furnace, to 910 DEG C ± 10 DEG C, insulation is cooled down heating-up temperature after 3 hours using cooling air mode；
（5）It is rough turn：Using lathe successively rough turn big end, rough turn total thickness, rough turn small end counterbore, rough turn big end counterbore；
（6）It is quenched：Heated using shaft furnace, be heated to 860 DEG C ± 10 DEG C, be incubated 3 hours, be put into 40 DEG C ~ 80 DEG C of oil groove and quench, be cooled to 200 DEG C and hang out oil groove, detect Rockwell hardness number；Using well furnace tempering, 590 DEG C ~ 610 DEG C are heated to, is quenched to most long delay time≤2 hour of tempering, water cooling of coming out of the stove is to less than 200 DEG C；
（7）Shot-peening：Shot blasting on surface processing is carried out using compressed air shotblasting machine；
（8）Flaw detection：Flaw detection is carried out using defectoscope；
（9）Smart car：Using lathe successively smart car small end, the big end of smart car, smart car screw thread, the imperfect tooth of milling, drilling；
（10）Examine and qualified obtain bonnet finished product.
2. the processing technology of high intensity plunger pump bonnet according to claim 1, it is characterised in that：The raw material uses AISI
4140 materials.
3. the processing technology of high intensity plunger pump bonnet according to claim 1, it is characterised in that：The step（5）In it is rough turn be specially：Blank small end is pressed from both sides using lathe, car total thickness 129 ± 1.0mm of size, the big end external diameter of car is 184 ± 0.5mm of diameter, length >=92mm, and the big end of car 172 ± 0.5mm of small external diameter diameter, 32 ± 0.5mm of shoulder height, 1.5 × 45 ° of break corner and chamfering are gone in periphery；Blank is pressed from both sides using lathe, car total thickness size, ensures that end face car goes out 127 ± 0.3mm, the small 172 ± 0.5mm of external diameter in the big end of car, 35 ± 0.3mm of height, the slight 134.5 ± 0.5mm of external diameter in the big end of car, shoulder height are 11.43 ± 0.3mm；The big end of car is pressed from both sides, rough turn small end counterbore, the outer counterbore aperture of small end is 60 ± 0.5mm, 17 ± 0.5mm of hole depth, counterbore aperture is 48 ± 0.5mm, 30.4 ± 0.5mm of hole depth in small end, 1.5 × 45 ° of break corner and chamfering are gone in 26 ± 0.5mm of through hole, periphery, and internal diameter is to big external diameter axiality≤0.3mm；Press from both sides car small end, the big end counterbore of car, 116 ± 0.5mm of aperture, 82.5 ± 0.3mm of hole depth.
4. the processing technology of high intensity plunger pump bonnet according to claim 3, it is characterised in that：The step（5）320 turns/min of lathe spindle rotating speed in rough turn small end, the m/min of cutting speed 0.24, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；280 turns/min of lathe spindle rotating speed during rough turn aperture, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times；320 turns/min of lathe spindle rotating speed during rough turn counterbore, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 2.5mm, feed number 2 times.
5. the processing technology of high intensity plunger pump bonnet according to claim 1, it is characterised in that：The step（9）32.58 ± 0.2mm of the middle big end external diameter height of smart car, big end 131.16 ± 0.2mm of counterbore outside diameter, center bore are 28.7 ± 0.2mm；The outer counterbore 62.74 ± 0.2mm, interior 50.91 ± 0.05mm of counterbore of smart car small end；Smart car Major Diam, central diameter, path；The imperfect tooth of thread milling；6 a diameter of 25.4mm, hole 19.05 ± 0.25mm of centre-to-centre spacing external port hole are uniformly bored in end counterbore inwall greatly, aperture periphery goes break corner and chamfering 0.8 × 45 ° of clamping face bounce, perpendicularity≤0.1mm.
6. the processing technology of high intensity plunger pump bonnet according to claim 5, it is characterised in that：The step（9）The big end of smart car uses Four-axis milling：The speed of mainshaft 320 turns/min, cutting speed 0.24m/min, feed 0.15mm/ turn, depth of cut 1.2mm, feed number 1 time；Lathe spindle rotating speed 380 turns/min, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 0.25mm, feed number 1 time；Lathe spindle rotating speed 440 turns/min, cutting speed 0.2m/min, feed 0.15mm/ turn, depth of cut 1.2mm, feed number 1 time；Lathe spindle rotating speed 480 turns/min, cutting speed 0.24m/min, feed 0.1mm/ turn, depth of cut 0.25mm, feed number 1 time.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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| EP1068912A2 (en) * | 1999-07-13 | 2001-01-17 | Kabushiki-Kaisha Kotani | Hypoid ring gear for differentials and method of producing the same |
| CN1443946A (en) * | 2003-04-17 | 2003-09-24 | 南京汽车集团有限公司 | Production process of high strength bolt with above 1300MPa |
| CN101559555A (en) * | 2009-05-19 | 2009-10-21 | 重庆长征重工有限责任公司 | Forging method of coupler knuckle for railway vehicle |
| CN102534374A (en) * | 2012-02-16 | 2012-07-04 | 无锡市万邦机械制造厂 | Method for processing rectangular-tooth spline sleeve using 42CrMoE high-quality alloy steel as material |
| CN103286533A (en) * | 2013-05-28 | 2013-09-11 | 重庆市首业机械制造有限公司 | Processing technology for rear axle drive bevel gear |
| CN105220064A (en) * | 2015-09-17 | 2016-01-06 | 温州三联锻造有限公司 | A kind of automobile eight-speed transmissions case gear forgings and forging method thereof |
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| EP1068912A2 (en) * | 1999-07-13 | 2001-01-17 | Kabushiki-Kaisha Kotani | Hypoid ring gear for differentials and method of producing the same |
| CN1443946A (en) * | 2003-04-17 | 2003-09-24 | 南京汽车集团有限公司 | Production process of high strength bolt with above 1300MPa |
| CN101559555A (en) * | 2009-05-19 | 2009-10-21 | 重庆长征重工有限责任公司 | Forging method of coupler knuckle for railway vehicle |
| CN102534374A (en) * | 2012-02-16 | 2012-07-04 | 无锡市万邦机械制造厂 | Method for processing rectangular-tooth spline sleeve using 42CrMoE high-quality alloy steel as material |
| CN103286533A (en) * | 2013-05-28 | 2013-09-11 | 重庆市首业机械制造有限公司 | Processing technology for rear axle drive bevel gear |
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