I. INTRODUCTION TO THE COMPANYThe company was established on 15/02/2011, this is the third branch of Nitriding Kawasaki LtdFields of investment: heat treatment and surface treatment of metals. The company is currently taking the heat treatment for the details, spare parts, motorcycles, oto the details, industry, machine, tool,. The main purpose is to enhance the durability, hardness, toughness and abrasion-resistant properties for details. The technologies are used, such as: Heat-absorbent carbon (or I), Carbon absorbent Nito Nito praseeda soft form, vacuum, high temperatures of ram. The top clients of companies like TOYOTA, MARUEI PRECISION, NEW VIETNAM, SANSEI, HARIKI PRECISION, JUKI CORPORATION, OKAYA VIETNAM Vietnam KOSAKA. In addition, the company is also the general partner in the firm's factory Techniques Surfaces Vietnam is subsidiaries of HEF, Dufferrit using absorbent technology nitrogen salt bath nitriding with trade names such as the Tenifer, Melonite, QPQ, Tufftride. In addition to the main purpose is to help increase the surface hardness, fatigue resistant, abrasion resistant metal, QPQ technology is also used as the solution dyed black metal (early golf sticks, bulon stainless steel).The company Techniques Surfaces heat treatment currently in Vietnam for the oil and gas sector party company such as Weatherford, Great Seal, X-Tech Drilling tool; the companies of car parts such as Denso, Nidec Sankyo co., Nidec Tosok, Meinan; shaped aluminum companies like Ben Washin, Sapa, Lixil,. The current capacity of 160 tonnes per month and can expand rapidly.II. THE LAY-OUT OF EQUIPMENT factory overview diagram: The main production equipment: + D1: Nito praseeda furnace gas format.processing temperature: 550-590° cweight handling: max 550kg/stronguse of gas: N2, NH3, CO2+ D2: electric ram high heat Temperature: 200-900° c Use of gas: N2+ D3, D4, D5: Oven heat permeability of carbon Processing temperature: 800-930° c Gas use: mixed Gas RX, N2, LPG, Air, NH3VS1, VS2: Washing Machine + vacuum, 1000Kg max handle weight.VC1, VC2 +: electric heat permeability of vacuum CarbonProcessing temperature: 750-1050° cUse of gas: C2H2, NH3 + Ram: low temperature, BT1 the processor temperature: 150-250° c (< 350° c)+ N1, N3: Nito praseeda kiln gases Processing temperature: 450 ~ 550 ℃ test equipment: + Rockwell hardness meterHRC, HRB, HRA (HRA 15N, HRC30N) + Vickers hardness meter: + Electronic microscope: + Shore hardness gauge+ III. PROCESS OPERATIONS AT THE COMPANYThermal machining process of the company as below The production indicator and the order information. -Sales order information for new production rooms -Business based on operation tables order up the votes received. Products not subject to the order, the records released items to customer requirements Production rooms based on the standard Table handle to identify the particular operation and heat treatment conditions. Content manipulation and processing conditions to satisfy customer's requirement categories Identify specific operations from production rooms, choice based on standard Dashboard processing, heat treatment conditions, manipulate content in order to satisfy the customer requirements or order parameter Table "orders", released the Panel stage. Manufacturing progress stages based on the Tables and send sales copy "enter". Business Room-released delivery table based on the TableMachining equipment:-Recognize the device. Production room made of votes confirmed the essential features of equipment used in the stage production equipment Management Dashboard. Production manager admits the device based on the Management Board production equipment. The room registered production equipment has been acknowledged in the ledger. Applied Management Board production equipment and the maintenance of records. -Check and maintenance. + Manufacturing (QEE) conduct periodic inspection Panel, annual maintenance plan tables, proceed to execute the test and maintenance equipment. + Abnormal test production equipment by the Panel "check list".+ Abnormal test equipment in operation at the operation. In the case of abnormal findings will release regulation device management, quick restoration maintenance organization. + Manufacturing management Votes marked on the equipment, maintain records management remodeling-maintenance-Enforcement of the process: IV. PROCESSING OF CERTAIN TYPES OF CARGO INPUT SHAFT (NEW VIETNAM) Material: S45CWeight: 1.7 kgThe type of handle: I usually + high ram 630o oC 870 C 90min 180min Surface hardness: 16 ~ 21 HRC Core: 16 ~ 21 hardness HRC DIFF CASE (NEW VIETNAM) Weight: 0.849 kg materials: S20C Processor type: Gas gas nitrocarburizing 5700c 3.5 Hr Surface hardness (HMV): > 630 Compound thickness: > 8 (μm) Inside: hardness HRB 80 ~ 95 (155 ~ 220 Hv) VALVE & SLEEVE (HARIKI MARUEI &) Material: SCr415 Weight: 0.211 kgThe type of handle: I seep carbon + low ram 880 ℃ 22 min 90min Surface hardness: 88 ~ 91 HR15N core hardness: 40 ~ 45 HRC Carbon absorbent layer depth 0.28 0.37 mm ~ KOSAKA Material: SCM420 The type of handle: I seep carbon + low ram 30 min Hot oil quenching Surface hardness: 58-60 HRCCore hardness: HV: 260 ~ 450Carbon absorbent layer depth: 0.63 ~ 0.75 mm RETAINER (MURO) Material: SPCC Weight: 0.006 kgThe type of handle: I seep C3H8 & NH3 + low ram C3h8 & NH3 O.c. 40 ℃ a. C Surface hardness: 80 ~ 82 HRA Carbon absorbent layer depth: 0.35 ~ 0.45 mm SPOOL (OKAYA) Material: SCM415 Weight: 0.121 kgThe type of handle: I seep carbon + low ram 920 ℃ 180 ℃ 850 ℃ 172min 120min 30 min A.C.Surface hardness: 58 ~ 60 HRC Carbon absorbent layer depth 0.6 ~ 0.75 mm SHAFT DRIVE 620 (MARUEI) Material: SWRCH15K Weight: 0.021 kgThe type of handle: I seep carbon + low ram Surface hardness: 57 ~ 65 HRC (88.9 HR15N ~ 92.2) Carbon absorbent layer depth 0.35 ~ 0.65 mm V. TUFFRIDE, PROCESS QPQ the time Carbon absorbent technology, loose nito QPQ technology turns heat permeability C, N the form of salt, creating surface hardness, high detail, very little or no create distortion on the details, it's appropriate for the details carbon steel, low alloy steel, tool steel, cast iron and stainless steel. After the surface treatment the details in black gloss and hardness is very high, it is appropriate to replace the handling of Cr, Ni-plating on the metal surface. composite absorbent salt was the salt Na2CO3, NaCL, K2CO3, NaCNO, IZ, KCNO. In the process of high-temperature and seepage effects of steel surface, the original salt-CN will born and seep into the surface details, then the oxidation process, cooled and washed chemicals in many hot water. processing: for example some more treats QPQ• POST HIGH (CQS VIETNAM)-Material: 1215 Surface hardness: HRC 55 Min, (595Hv Min.) HV 50 g The absorbent layer depth: 3.8 ~ 25μm• WHITECAP IH (VISION INTERNATIONAL)Materials: 8620 The absorbent layer depth: 4 ~ 10 μm• CORE STATOR (DENSO) Material: WS410 The absorbent layer depth: 7 ~ 20 µm.• HO CHI MINH CITY (WEATHERFORD)Material: 4130
đang được dịch, vui lòng đợi..
