Dental regulations is only another name for thread gauge, there are threaded plug gauge (cork rules) and the thread ring gauge; In addition, a smooth ring, three needles, needle, etc. are all around the smooth plug hole and thread-based detection tools.

     Our teeth sold by the rules thread bolt (plug), ring teeth Planning (ring), strong skills and a high degree of professionalism, delivery speed, is the most professional of the thread teeth Planning (gauge) providers, deeply customer trust, is an ideal choice for many customers; can also be customized according to user demand for the body.

     This page is mainly to describe what used to detect the thread, hole gauge, also belongs to measuring regulatory teeth.

     Dental practice was used to detect thread detection tools, sub-plug (plug regulations) and the ring are two, one for internal thread (female) thread and external (public) thread, the thread has been detected a number of (American Standard Unified system thread, common thread, the U.S. system, pipe thread, inch thread, API oil thread ------), inspection prior to use measured by the relevant bodies after passing inspection and measurement before put into production on-site use; In addition, you must have to differentiate between pass rules and regulations only, as well as attention to the accuracy of thread hierarchy.

     1: thread plug gauge (cork rules), generally the same specifications as a set of two simultaneously, namely, pass rules and regulations only.

     1, with twist-pass regulatory tests, if not screwed on the failure, this time on unnecessary re-use only the rules, because it is a bad product.

     2, with screw-pass regulatory tests, if we can screw into, and then only the regulatory twist, if the only regulation can also be screwed in, it failed.

     3, with screw-pass regulatory tests, if we can screw into, and then only the regulatory twist, if the only regulation can not be screwed into or screwed in just one or two teeth and that is qualified.

     2: thread ring, but also as a set of two to use, pass rules and regulations only.

     1, Tung Regulation

     First, clean up the thread measured oil, impurities, and then the mother means the end of the index finger with the measured rotation pass thread to spin in the free state together through the thread length, to determine eligibility.

     2, only the rules

     Clean up the thread measured oil and impurities, only the client and the tested thread right now, you use the Great Mother refers to rotate with the index finger only client and the measured external thread, screw thread pitch in length, within two qualified, screw thread too many bad products shall be.

     Note: The above mentioned only applies to metric, American, British general mechanical connection system of non-screw thread and the United States and Britain to use sealed gauge is not suitable for taper thread gauge, taper gauge is a reference position detection.

     3: Maintenance and Maintenance

     1, is also a measuring part of the regulatory teeth, teeth regulation after use should be measured in time to clean up parts of fixtures.

     2, the production site with the teeth in the regulations should be light-light, in order to prevent damage to measure the surface bump.

     3, is strictly prohibited as a cutting tool will be a mandatory regulatory teeth screwed or threaded screw extruder to avoid early wear and tear.

     4, dental regulations prohibited non-metering staff or operators are free to use in order to ensure the accuracy of detection.

     5, teeth do not regulate a long time, due metering management or operator safekeeping.

     4: Attention

     Dental regulations in use in each work should be measured once daily use proofing tools, after proof-reading, if the teeth beyond the tolerance of regulatory measures by the relevant persons to recover for the corresponding measures to deal with, timely treatment, not into the production site.

     5: Thread Type

     Listed below is that in the actual production, processing, manufacturing some of the more commonly used domestic and foreign thread specifications,

     Are widely used in aerospace, machinery and electrical and mechanical, electronic and electrical, fasteners, oil pipelines, etc. in different industries.

     1, American Standard Unified screw thread gauges used to detect internal and external teeth. A number of US-made tooth-shaped coarse teeth (UNC), US-made fine teeth (UNF), US-made extra-fine teeth (UNEF), US-made constant pitch threads (UN), US-made a special thread (UNS), Among them, UNC, UNF most commonly used. Outer diameter size of less than 1 / 4 inches (IN) with the designation of the said: NO: 0, NO: 1, NO: 2, NO: 3, NO: 4, NO: 5, NO: 6, NO: 8, NO : 10, NO: 12, a total of 10 designations; since then, said the system using inches, such as: 1/4-20UNC, 1 / 4 is the outer diameter size, 20 is the number of teeth per inch, UNC is the thread of American Unity coarse teeth,

     Default within the usual precision thread 2B, external thread 2A; this thread diameter can be made to order any size, precision products.

     2, American aerospace thread, in addition to UNJ, there UNJC (coarse teeth), UNJF (fine tooth), UNJEF (fine teeth), UNJS (special diameter, pitch, rotation combined length of the thread); the same diameter size of There are many different pitch.

     UNJ (National Aeronautics and Space thread) is the anti-fatigue and high-precision screw, and the ordinary American unity thread, compared with the arc of the teeth can reduce the stress concentration at the end, and the internal thread of the trail than the increases, reducing the external thread of the off area, UNJ threads are mostly used in aerospace fasteners, as well as highly sophisticated industrial products, the use of the internal thread tolerance 3B, external thread 3A, This is a US-made thread with the most sophisticated level.

     Representation such as:

     (1), 5/16-24UNJF-3A, This is a fine tooth MALE 3A precision specifications are spin representation.

     (2), 1/4-28UNJF-3A-LH, This is a fine tooth MALE 3A precision anti-rotation (anti-tooth) representation.

     (3), 3/8-24UNJF-3B, This is a fine tooth accuracy of representation within the thread 3B, anti-spin (anti-tooth) is added LH.

     This thread can also be tailor-made arbitrary diameter, pitch, rotation to the product.

     3, US-made pipe thread, American Standard taper pipe thread NPT, American taper pipe thread stem seal NPTF, US-made straight pipe thread NPSM, American Standard taper pipe thread air ANPT; taper pipe thread plug gauge have a L1, L3, L6, Ring Gauge There L1, L2, L6.

     4, US-made trapezoidal thread English as mother love g ACME, 29 ° tooth-shaped angle, with diameter sizes, the number of teeth per foot, tolerance, code-named composition, such as: 5/8-8 ACME-2G; short teeth Eyck mother ( STUB-ACME), this thread can also be custom-made arbitrary diameter, pitch, tolerance products.

     5, common thread gauge metric (M), the International General Motors, is the most common thread, 60 ° tooth-shaped angle, parallel mechanical connection with the thread, only marked M + diameter size of the practice we will provide coarse thread teeth, fine tooth large pitch; precision, most plug gauge (check inside the thread) for 6H, ring (check external thread) for 6h and 6g, can also be customized according to user needs non-standard products and air to enhance thread (MJ), metric screw caps letters for the internal thread tolerance, lower-case letters for the external thread tolerance.

     6, inch pipe thread, there are two, sealed with screw pipe thread gauge RB, internal thread, code-named RC, external thread for the R, gauge, code-named representative of flat-topped flat-bottomed RB, equivalent to JIS PT thread; another kind of non-threaded Seal pipe thread gauge G, there is only one internal thread tolerance, external thread with A, B two kinds.

     7, the American Petroleum Institute (API) There are four common thread;

     (1), oil drilling connector thread gauge to test the oil drill pipe joints, square drill pipe and drill collars drill pipes and other structural parts of the connecting thread of the test measuring instruments. According to the different forms of joint drill, the amount of regulation can be divided into the regular type (REG), consistent eye-type (FH), digital-type (NC) three kinds; while inside the flat-type (IF) in the phase-out.

     Oil-drilling screw gauge the regular-type connector (REG) specifications 2 3/8REG, 2 7/8REG, 3 1/2REG, 4 1/2REG, 5 1/2REG, 6 5/8REG, 7 5/8REG, 8 5 / 8REG.

     Guan-Eye (FH) specifications 3 1/2FH, 4 1/2FH, 5 1/2FH, 6 5/8FH.

     Digital-type (NC) are more commonly used specifications NC23, NC26, NC31, NC35, NC38, NC40, NC44, NC46, NC50, NC56, NC61, NC70, NC77 and so on.

     (2) Oil casing thread gauge, CSG (short round thread casing, thread for the round thread, tooth top and bottom teeth for the arc-shaped; taper 1:16; tooth-type angle of 60 °, flank angle of 30 ° ; pitch of 3.175 and 2.54, tooth-type height: 1.810,1.412, 8 teeth per inch, 10 teeth), long round thread casing code (LCSG).

     BCSG (Buttress thread casing, 13 3 / 8 "below taper 1:16,16" above 1:12 taper, pitch of 5.08 (5 teeth / inch); tooth-high of 1.575; flank angle of 3 ° and 13 °, tooth-type angle of 13 °.

     Note: 13 3 / 8 "below the thread tooth top and bottom teeth in parallel with the bus; 16" above, thread tooth top and bottom teeth with the axis parallel to.

     CSG common specifications 4 1/2CSG, 5CSG, 6 5/8CSG, 7CSG, 7 5/8CSG.

     LCSG common specifications 4 1/2LCSG, 5LCSG, 6 5/8LCSG, 7LCSG, 7 5/8LCSG.

     BCSG common specifications 4 1/2BCSG, 5BCSG, 6 5/8BCSG, 7BCSG, 7 5/8BCSG.

     (3) oil pipeline thread gauges, this thread is more commonly used, specifications 1.050TGB-4 1/2TBG (no thicker gauge tubing thread), 1.050UPTBG-4 1/2UPTBG (for foreign thicker gauge tubing thread), thread to 60 ° tooth-shaped angle, 1:16 taper.

     TBG (no thicker NUE, NU) thread specifications 1.050TBG, 1.315TBG, 1.660TBG, 1.900TBG, 2 3/8TBG, 2 7/8TBG, 3 1/2TBG, 4TBG, 4 1/2TBG.

     UPTBG (thicker EUE, EU) thread specifications 1.050UPTBG, 1.315UPTBG, 1.660UPTBG, 1.900UPTBG, 2 3/8UPTBG, 2 7/8UPTBG, 3 1/2UPTBG, 4UPTBG, 4 1/2UPTBG.

     (4) oil pipeline, pipe thread gauge, the standard, code-named LP, tooth-shaped angle 60 °, 1:16 taper, pitch a 0.9407,1.411,1.8143,2.2087,3.175.

     Oil pipeline thread gauge specifications 1/8LP, 1/4LP, 3/8LP, 1/2LP, 3/4LP, 1LP, 1 1/4LP, 1 1/2LP, 2LP, 2 1/2LP, 3LP, 3 1 / 2LP, 4LP, 5LP, 6LP.

     Note: But who have not traveled the specifications listed, please call consultation, need to order products please provide external diameter size, tolerance, spin the data provided to ------, short as possible, in order to avoid unnecessary trouble.