Shenzhen Honscn is a professional manufacturer of CNC Machine Parts, Auto Lathe Machine Parts, and Screw Fasteners. We offer OEM and ODM service with any related products for customers. We have a professional team of product design and engineers, as well as a professional QC team, our sales and documentation and logistics departments can finish the requirements of presentation of documents under various payment methods and different transportation modes.

• We can make offcial drawings based on customer request, or customer will provide their drawings for us to quote price and make samples for approval.





• After receiving the samples, customers will do a test for the material, size and tolerance. If customer need to change the size or material, we can arrange second samples for approval. Until customer approved the samples, then we will confirm large order.

Meantime, we will test it before shipping samples. And all tests are strictly carried out according to industry standards.





• If confirmed the sample okay, the customer needs us to provide the Mill Test Crtificate of this product conforming to EU standards, such as CE, RoHS, REACH before placing order. All of our products are in accordance with all the European certification, such as CE, RoHS, REACH, etc., and all of them have prepared standard documents for customers checking.







• We start to prepare the order materials when customer confirm all the details such as material, size, tolerance, surface finish and other details of the final sample.

After the package such as qty, label, shipping mark etc. are provided by customer, we starts to arrange the mass production. After all the goods finished, send pictures to customer for approval. We promise the packag is same as customer requested, mass products are exactly the same as the final samples. The following photos of the shipment, the passing rate of the third-party inspection of our company is 100%.





• After receiving shipment of whole order, customer put it on the market immediately and became the most popular product in the market quickly, no matter from the traditional market, the market of high-end professional fasteners or the online sales in Amazon. We always pay much attention to the quality of our products, which is recognized by customers and repurchased constantly.

1. The unmarked shape tolerance shall meet the requirements of gb1184-80.
2. The allowable deviation of unmarked length dimension is 0.5mm.
3. Unspecified fillet radius R5.
4. All undeclared chamfers are C2.
5. Blunt acute angle.
6. Blunt sharp edges, remove burrs and flash.
1. There shall be no scratch, scratch and other defects damaging the part surface on the part processing surface.
2. The machined thread surface shall be free of defects such as black skin, bump, random buckle and burr.
Before painting, rust, scale, grease, dust, soil, salt and dirt must be removed from the surface of all steel parts to be painted.
3. Before derusting, remove grease and dirt on the surface of iron and steel parts with organic solvent, alkali solution, emulsifier and steam.
4. The time interval between the surface to be coated by shot peening or manual derusting and the primer shall not be more than 6h.
5. The surfaces of riveted parts in contact with each other must be coated with a thickness of 30 40 before connection M antirust paint. Lap edges shall be closed with paint, putty or adhesive. The primer damaged due to processing or welding shall be repainted.
3 Heat treatment of parts:
1. After quenching and tempering, HRC50 55.
2. Medium carbon steel: 45 or 40Cr parts are subject to high-frequency quenching, tempering at 350 370 , and hrc40 45.
3. Carburizing depth 0.3mm.
4. Carry out high temperature aging treatment.
4 Technical requirements after finishing
1. The finished parts shall not be placed directly on the ground, and necessary support and protection measures shall be taken. 2. The machined surface shall be free of rust, corrosion, bumps, scratches and other defects affecting performance, service life or appearance.
3. There shall be no peeling on the surface finished by rolling.
4. There shall be no oxide scale on the surface of the parts after heat treatment in the final process. The finished mating surface and tooth surface shall not be annealed
5 Sealing treatment of parts:
1. All seals must be soaked with oil before assembly.
2. Before assembly, strictly check and remove the sharp corners, burrs and foreign matters left during part processing. Ensure that the seal is not scratched during installation.
3. The excess adhesive flowing out shall be removed after bonding.
1. After the gear is assembled, the contact spots and backlash on the tooth surface shall comply with the provisions of GB10095 and gb11365.
2. The reference end face of the gear (worm gear) shall fit the shaft shoulder (or the end face of the positioning sleeve), and it cannot be checked with a 0.05mm feeler gauge. The perpendicularity between the gear reference end face and the axis shall be ensured.
3. The joint surface of gearbox and cover shall be in good contact.
1. The casting tolerance zone is symmetrical to the basic dimensional configuration of the blank casting.
2. Cold lap, crack, shrinkage cavity, penetrating defect and serious incomplete defect (such as under casting, mechanical damage, etc.) are not allowed on the casting surface.
3. The casting shall be cleaned without burrs and flash. The pouring and riser on the non machining indication shall be cleaned and flush with the casting surface.
4. The cast words and marks on the non machined surface of the casting shall be clear and legible, and the position and font shall meet the drawing requirements.
5. The roughness of non machined surface of casting, sand casting R, shall not be greater than 50 m
6. The pouring riser, flying thorn, etc. shall be removed from the casting. The residual amount of pouring and riser on the non machined surface shall be leveled and polished to meet the surface quality requirements.
7. The molding sand, core sand and core bone on the casting shall be removed.
8. The casting has inclined parts, and its dimensional tolerance zone shall be configured symmetrically along the inclined plane.
9. The molding sand, core sand, core bone, fleshy, sticky sand, etc. on the casting shall be shoveled, ground and cleaned.
10. The wrong type and boss casting deviation shall be corrected to achieve a smooth transition and ensure the appearance quality.
11. The wrinkle on the non machined surface of the casting shall be less than 2mm deep and the spacing shall be greater than 100mm.
12. The non machined surfaces of machine product castings shall be shot peened or roller treated to meet the requirements of cleanliness Sa21 / 2.
13. Castings must be water toughened.
14. The casting surface shall be flat, and the gate, burr, sand sticking, etc. shall be removed.
15. Casting defects such as cold shuts, cracks and holes that are detrimental to use are not allowed.
1. The nozzle and riser of each ingot shall have sufficient cutting amount to ensure that the forging has no shrinkage cavity and serious deflection.
2. Forgings shall be forged on a forging press with sufficient capacity to ensure full penetration in the forging.
3. Forgings are not allowed to have visible cracks, folds and other appearance defects affecting use. Local defects can be removed, but the cleaning depth shall not exceed 75% of the machining allowance. The defects on the non machined surface of forgings shall be cleaned and smoothly transition.
4. Forgings shall be free of white spots, internal cracks and residual shrinkage cavities.

The requirements of lightweight, safety and decoration in modern automobile manufacturing industry drive the development of traditional welding technology in the field of automobile plastics. In recent years, with the application of a variety of high-end technologies such as ultrasonic, vibration friction and laser technology in the field of automobile plastic parts manufacturing, the technical level and supporting capacity of domestic automobile parts manufacturing industry have been greatly improved.As for the welding and welding process of automotive interior parts, hot plate welding, laser welding, ultrasonic welding, non-standard ultrasonic welding machine, vibration friction machine, etc. have been developed. In the process, one-time overall or complex structure welding can be realized, and the optimal design requirements can be achieved on the basis of simplifying mold design and reducing molding cost.For typical interior and exterior trim parts, large components with high surface quality and complex structure, such as instrument panel, door panel, column, glove box, engine intake manifold, front and rear bumper, must select corresponding welding technology, and adopt appropriate welding process according to the requirements of interior structure, performance, materials and production cost. All these applications can not only complete the corresponding manufacturing process, but also ensure the excellent quality and perfect shape of products.


Hot plate welding machine: the hot plate welding machine equipment can control the horizontal or vertical movement of the hot plate welding die, and the transmission system is driven by pneumatic, hydraulic drive or servo motor. The advantages of hot plate welding technology are that it can be applied to workpieces of different sizes without area limitation, applicable to any welding surface, allowing plastic allowance compensation, ensuring welding strength, and adjusting welding procedures according to the needs of various materials (such as adjusting welding temperature, welding time, cooling time, input air pressure, welding temperature and switching time, etc.), In the welding process, the equipment can maintain good stability, ensure consistent welding effect and accuracy of workpiece height after machining.
Another feature of the horizontal hot plate welding machine is that it can rotate at 90 for cleaning. The processing period of hot plate welding machine can generally be divided into: original position (the hot plate does not move with the upper and lower molds), heating period (the hot plate moves between the upper and lower molds, and the heat of the hot plate moves down the upper and lower molds to dissolve the welding surfaces of the upper and lower workpieces), transfer period (the upper and lower molds return to the original position, and the hot plate exits), welding and cooling period (the upper and lower dies are joined to make the workpiece welded at the same time and cooled for forming), and return to the original position (the upper and lower dies are separated, and the welded workpiece can be taken out).
In the early automobile industry, these welding equipment were relatively common, but with the continuous improvement of the requirements for the structure, shape and service life of the parts themselves, the requirements for their processing equipment are higher and higher. Moreover, because the size of the equipment is limited to the size of the welded parts, the equipment and equipment driving mode should be selected according to the size of the parts in the design. The most important thing is the parts The heating area is large and there is large deformation. In addition, the welding process distinguishes the polarity and non polarity of welding plastics, resulting in the gradual replacement of hot plate welding by ultrasonic welding and laser welding. The main parts used for welding in China include automotive plastic fuel tank, battery, tail lamp, glove box, etc.
Laser welding: laser welding technology is widely used in today's medical device manufacturing industry. Only a few manufacturers in the automotive industry use laser welding air inlet pipe, etc. because it is a new welding technology, it is not very mature to a certain extent, but it is believed that it will be widely used in the near future because of its remarkable welding characteristics. Its advantage is that it can weld TPE / TP Or TPE products; under the condition of no vibration, nylon, workpiece with sensitive electronic parts and three-dimensional welding surface can be welded, which can save cost and reduce waste products.
In the welding process, the resin melts less, the surface can be welded tightly, and there is no flash or glue overflow. It is allowed that rigid plastic parts can be welded without glue overflow and vibration. Generally, workpieces with soft or irregular welding surfaces can be welded evenly regardless of the size of workpieces, especially for large-scale production of high-tech micro parts. However, laser conduction is limited. "Quasi synchronous" laser welding technology uses a scanning mirror to transmit the laser beam to the welding surface at the speed of 10m / s according to the welding shape. It can walk on the welding surface as many as 40 times in 1s. The plastic around the welding surface melts and the two workpieces are welded after pressurization.
Laser welding can be roughly divided into: solid Nd-YAG system (laser beam is generated by crystal) and diodesystem (high power diode laser) , CAD data programming. All materials can be laser welded with body materials, among which acrylonitrile butadiene styrene is most suitable for laser welding with other materials, nylon, polypropylene and polyethylene can only be welded with their own body materials, and other materials have general applicability for laser welding.fqj

In this photo taken on Monday, Feb. 18, 2019, Gregory McDonald, CEO of GoodFish, an injection molding business that supplies the auto industry, speaks to the Associated Press in Cannock, England. Worryingly for McDonald, some 30 percent of the molded plastic parts his company makes ultimately go to carmakers who say they will face a catastrophe if Britain leaves the European Union without an agreement on future trade. So Goodfish, a nine-year-old company with three plants in England, is preparing to expand in Slovakia, an EU country where Volkswagen, Kia, Peugeot-Citroen and Jaguar Land Rover produce more than 1 million vehicles a year. (AP Photo/Rui Vieira)LONDON (AP) -- Gregory McDonald strides across the spotless factory floor at his company, Goodfish, glowing with pride. He plowed his life savings into the injection-molding equipment that churns out plastic parts for everything from aircraft to sprinkler systems and disposable medical devices. He's ready to do anything necessary to protect that investment.Worryingly for McDonald, some 30 percent of the parts ultimately go to carmakers who say they will face a catastrophe if Britain leaves the European Union without an agreement on future trade.So Goodfish, a nine-year-old company with three plants in England, is preparing to expand in Slovakia, an EU country where Volkswagen, Kia, Peugeot-Citroen and Jaguar Land Rover produce more than 1 million vehicles a year. It's a pragmatic decision for McDonald, who says he can't afford to be influenced by sentiment or nationalism."There's too much at stake for me, in owning this business, to just stay within Brexitland," he says at the plant, surrounded by the smell of molten plastic. "And that's what I decided to do: set up a business in Slovakia.McDonald's decision illustrates the huge pressures facing Britain's auto industry while the government struggles to negotiate a divorce deal with the EU ahead of Brexit day on March 29. As Prime Minister Theresa May tries to balance competing political interests and hammer out an agreement Parliament will support, people in the car business are making decisions based on production cycles, not politics. At stake are 856,000 jobs, most of them at smaller companies like Goodfish that provide parts and services ultimately destined for the likes of Honda, Nissan and Ford.Carmakers are being forced to weigh uncertainty about possible tariffs and border checks at a time when the industry faces a wholesale overhaul amid changing consumer habits, concerns about global warming and the shift to electric vehicles.Investment in Britain's car industry fell 46 percent last year and is down 80 percent over the past three years, partly because of Brexit, according to industry figures. Production dropped 9.1 percent last year to 1.52 million vehicles. Britain's carmakers have warned that two-thirds of the country's global trade could be affected by higher tariffs if the U.K. leaves the EU without an agreement, as Britain would also fall out of free trade deals the EU had in place with other countries, like Japan."The car industry is at a tipping point," said David Bailey, an economist at the Aston Business School known for his expertise on Britain's car industry. "We risk 'carmaggedon.'"While businesses from banking to food services have demanded certainty about future trade rules, Britain's auto industry is particularly vulnerable to Brexit because cars are assembled, not forged in a single place.Modern manufacturing techniques mean carmakers have plants in several locations often in different countries with each relying on the "just-in-time" delivery of parts from others in their supply chains to make the most efficient use of workers and investment.This means tariffs and border delays, which don't exist within the EU but could become a reality in a no-deal Brexit, are an oversized threat to carmakers because they could be applied each time components cross borders on their way, ultimately, to the showroom.McDonald believes it's unlikely that the U.K. will get investment in manufacturing the way it did in the past, when it was appreciated as an English-speaking gateway to the EU."There's a level of uncertainty that goes with being in the U.K. that never really was here for the last 40 years," he says.And so far, the bad news keeps piling up.This month, Nissan canceled plans to build a new diesel-powered X-Trail sports utility vehicle at its U.K. plant. That reversed a decision announced two years ago after May's government offered some 60 million pounds in incentives to ensure the carmaker's ability to compete after Brexit. Jaguar Land Rover has announced global cuts of 4,500 jobs, with many in Britain. Honda plans to close its U.K. assembly and engine plant, with a loss of 3,500 jobs. Dyson, a homegrown firm known for vacuum cleaners and hair dryers, has said it will build its new electric car in Singapore.Altogether, big carmakers have announced more than 10,000 British job cuts in the past two years, figures that don't include the supply chain, Bailey said.The loss of models made in the U.K. would see output in the latter part of the next decade drop to levels not seen since the global financial crisis, Bailey said."In short, the stakes for U.K. auto from on-going Brexit uncertainty are very high indeed, just at a time when the industry is starting to transform itself towards an electric future," Bailey said in a recent blog post. "The U.K. risks losing a wave of investment, and with it, a raft of new technologies."Business leaders are getting ever more frustrated with delays in the Brexit talks, their fury spilling over in interviews as they express concerns about foreign investment, jobs and economic growth.Though May agreed to allow lawmakers to vote on a possible delay if she can't get an agreement through Parliament, she has refused to rule out a no-deal Brexit, saying that doing so would weaken her position with EU negotiators.Carolyn Fairbairn, director-general of the Confederation of British Industries, described the tactic as reckless."No business would go into a room negotiating on a platform that says: 'If you don't give me what I want I'm going to shoot myself in the foot,'" she told the BBC last week, her voice quaking with frustration. "It is not a negotiating tactic that is working. We know the impact on the economy. We're seeing it. Jobs and investment are leaving us daily."Investments, in other words, like the one Goodfish is making.McDonald, a former hedge fund manager who employs 125 people, has a picture of the Slovak plant he's got in mind for expansion. He has set up a company there and is ready to finalize the expansion when the time is right."By hook or by crook, I think I'll survive," he says. "It doesn't necessarily mean the journey will be easy... I'm quite prepared to do difficult as well.

A common problem on bumper covers is that the tabs that attach the bumper to the car get broken. This is critical, as this is what secures and aligns the bumper cover. Many times, a broken tab is all that is wrong with the bumper cover. With the cost of these plastic parts $200 to $700, the replacement cost can break the bank.In this tutorial you are going to learn a few simple steps to repair a broken tab to as good as new at a fraction of the cost.Depending on location of the tab, the bumper may need to be removed. However, many times this repair can be made with the bumper cover still attached to the car.Step 1: Wash with Soap and WaterStart the repairs with a good wash to remove contaminates on the bumper cover. This will assure all silicones are removed which will provide a quality repair.Step 2: Grind TabWhere the tab broke, use a 50 grit roloc disc to grind the repair area to a point. This will provide the correct shape to maximize adhesion. When grinding plastic, use a slow RPM.Step 3: Sand TabUsing 80 grit by hand or 80 grit on a dual action sander, sand the repair area to assure all areas the adhesive will come in contact with is sanded. Do not apply adhesive on an un-sanded surface.Step 4: Drill HolesDrill holes on repair location using a 1/8 inch drill bit. This will allow the adhesive to flow from one side of the repair to the other side providing a rivet like effect.Step 5: Clean Repair AreaUsing compressed air, blow the repair area clean. Do not use any type of solvent cleaner, as this can absorb into the plastic, which will cause problems.Step 6: Adhesion PromoterSpray a light coat of adhesion promoter to the repair area. This is important so the adhesive adheres to the repair. Allow the adhesion promoter to dry for 5 to 10 minutes.Step 7: Cut Plastic and Apply AdhesiveCut a piece of plastic from the package the tab repair adhesive came in to shape the adhesive. Support the bottom of the plastic using a spreader. Apply adhesive to the plastic, then lightly press the adhesive to the backside of the repair. Next, wrap the plastic around the tab location. Make sure the plastic extends past the original length of the plastic tab. Lastly, lightly apply pressure using a spreader on the top of the adhesive to shape the tab. Do not apply too much pressure, as this will build a tab that is too thin. Allow to set-up 30 seconds to one minute. The release pressure on spreaders and allow to finish drying.Step 8: Precut TabAfter a minute or two, before completely drying, precut the tab a little larger than the tab size. Then allow to finish drying about 5 minutes.Step 9: Sand TabOnce the tab is fully hardened (about 5 minutes) remove plastic from around the tab and shape the tab using the 50 grit roloc disc, followed by 80 grit by hand or on a dual action sander.Step 10: Drill HoleThe last step is to drill the hole for the clip or bolt to go through to attach it to the vehicle.That's It!You normally will not see the tabs once secured to the vehicle. However, you may choose to repaint the tab before attaching to the vehicle..Warning!You only have about 30 seconds work time with this tab repair adhesive. So be sure you have everything you need before applying the adhesive to tab location. Be sure to watch the video for additional information and how to purge the adhesive cartridge before usingProducts Used in This Tutorial50 Grit Roloc Grinder Disc80 Grit Sandpaper3M 04747 Super Fast Repair Adhesive3M 05907 Adhesion Promoter